OptiPNG 0.6.3: Advanced PNG optimizer.
Copyright (C) 2001-2009 Cosmin Truta.

** Processing: 01-01.gif
Importing GIF
548x497 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 346680 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 262890
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5		IDAT size = 236177
  zc = 9  zm = 8  zs = 1  f = 5		IDAT size = 233566
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5		IDAT size = 233558

Selecting parameters:
  zc = 9  zm = 8  zs = 3  f = 5		IDAT size = 233558

Output file: 01-01.png

Output IDAT size = 233558 bytes
Output file size = 233615 bytes (113065 bytes = 32.61% decrease)

** Processing: 01-02.gif
Importing GIF
677x549 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 74344 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 61393
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 60556
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 60556

Output file: 01-02.png

Output IDAT size = 60556 bytes
Output file size = 60613 bytes (13731 bytes = 18.47% decrease)

** Processing: 01-03.gif
Importing GIF
746x329 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 91953 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 74027
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 73443
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 73443

Output file: 01-03.png

Output IDAT size = 73443 bytes
Output file size = 73500 bytes (18453 bytes = 20.07% decrease)

** Processing: 01-04.gif
Importing GIF
451x401 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 227718 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 171511
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 171396
  zc = 1  zm = 8  zs = 2  f = 0		IDAT size = 171396
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5		IDAT size = 156732
  zc = 9  zm = 8  zs = 1  f = 5		IDAT size = 155014
  zc = 1  zm = 8  zs = 2  f = 5		IDAT size = 155014
  zc = 9  zm = 8  zs = 3  f = 5		IDAT size = 155014

Selecting parameters:
  zc = 1  zm = 8  zs = 2  f = 5		IDAT size = 155014

Output file: 01-04.png

Output IDAT size = 155014 bytes
Output file size = 155071 bytes (72647 bytes = 31.90% decrease)

** Processing: 01-05.gif
Importing GIF
656x899 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 595666 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 465930
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 465330
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5		IDAT size = 452592
  zc = 9  zm = 8  zs = 1  f = 5		IDAT size = 446546
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 5		IDAT size = 446546

Output file: 01-05.png

Output IDAT size = 446546 bytes
Output file size = 446603 bytes (149063 bytes = 24.84% decrease)

** Processing: 01-06.gif
Importing GIF
674x794 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 486962 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 370791
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5		IDAT size = 347656
  zc = 9  zm = 8  zs = 1  f = 5		IDAT size = 343683
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 5		IDAT size = 343683

Output file: 01-06.png

Output IDAT size = 343683 bytes
Output file size = 343740 bytes (143222 bytes = 29.23% decrease)

** Processing: 01-07.gif
Importing GIF
705x552 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 143975 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 114332
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 112912
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 112912

Output file: 01-07.png

Output IDAT size = 112912 bytes
Output file size = 112969 bytes (31006 bytes = 21.54% decrease)

** Processing: 01-08.gif
Importing GIF
754x449 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 396011 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 302476
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 302459
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5		IDAT size = 291035
  zc = 9  zm = 8  zs = 1  f = 5		IDAT size = 288722
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 5		IDAT size = 288722

Output file: 01-08.png

Output IDAT size = 288722 bytes
Output file size = 288779 bytes (107232 bytes = 27.08% decrease)

** Processing: 01-09.gif
Importing GIF
698x948 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 212446 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 164582
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 162435
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 162435

Output file: 01-09.png

Output IDAT size = 162435 bytes
Output file size = 162492 bytes (49954 bytes = 23.51% decrease)

** Processing: 01-10.gif
Importing GIF
790x1002 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 123278 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 105074
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 103181
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 103181

Output file: 01-10.png

Output IDAT size = 103181 bytes
Output file size = 103238 bytes (20040 bytes = 16.26% decrease)

** Processing: 01-11.gif
Importing GIF
380x357 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 77837 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 63862
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 62820
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 62820

Output file: 01-11.png

Output IDAT size = 62820 bytes
Output file size = 62877 bytes (14960 bytes = 19.22% decrease)

** Processing: 01-12a.gif
Importing GIF
650x577 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 373258 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 290325
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 290319
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5		IDAT size = 282759
  zc = 9  zm = 8  zs = 1  f = 5		IDAT size = 279796
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 5		IDAT size = 279796

Output file: 01-12a.png

Output IDAT size = 279796 bytes
Output file size = 279853 bytes (93405 bytes = 25.02% decrease)

** Processing: 01-12b.gif
Importing GIF
648x482 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 367531 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 280660
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 280266
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5		IDAT size = 269013
  zc = 9  zm = 8  zs = 1  f = 5		IDAT size = 266010
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 5		IDAT size = 266010

Output file: 01-12b.png

Output IDAT size = 266010 bytes
Output file size = 266067 bytes (101464 bytes = 27.61% decrease)

** Processing: 01-13.gif
Importing GIF
767x1028 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 330118 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 260628
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 258581
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 258581

Output file: 01-13.png

Output IDAT size = 258581 bytes
Output file size = 258638 bytes (71480 bytes = 21.65% decrease)

** Processing: 01-14.gif
Importing GIF
736x1156 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 135765 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 117180
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 114222
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 114222

Output file: 01-14.png

Output IDAT size = 114222 bytes
Output file size = 114279 bytes (21486 bytes = 15.83% decrease)

** Processing: 01-15.gif
Importing GIF
668x982 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 122527 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 105195
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 102839
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 102839

Output file: 01-15.png

Output IDAT size = 102839 bytes
Output file size = 102896 bytes (19631 bytes = 16.02% decrease)

** Processing: 01-16.gif
Importing GIF
680x728 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 119016 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 100050
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 98148
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 98148

Output file: 01-16.png

Output IDAT size = 98148 bytes
Output file size = 98205 bytes (20811 bytes = 17.49% decrease)

** Processing: 01-17.gif
Importing GIF
726x1057 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 179034 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 147475
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 146917
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 146917

Output file: 01-17.png

Output IDAT size = 146917 bytes
Output file size = 146974 bytes (32060 bytes = 17.91% decrease)

** Processing: 02-01.gif
Importing GIF
786x501 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 426482 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 343961
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5		IDAT size = 292789
  zc = 9  zm = 8  zs = 1  f = 5		IDAT size = 274836
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5		IDAT size = 274768

Selecting parameters:
  zc = 9  zm = 8  zs = 3  f = 5		IDAT size = 274768

Output file: 02-01.png

Output IDAT size = 274768 bytes
Output file size = 274825 bytes (151657 bytes = 35.56% decrease)

** Processing: 02-02-04.gif
Importing GIF
670x1010 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 641992 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 522883
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 520716
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5		IDAT size = 476348
  zc = 9  zm = 8  zs = 1  f = 5		IDAT size = 447280
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 5		IDAT size = 447280

Output file: 02-02-04.png

Output IDAT size = 447280 bytes
Output file size = 447337 bytes (194655 bytes = 30.41% decrease)

** Processing: 02-05.gif
Importing GIF
565x361 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 36492 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 30786
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 30786

Output file: 02-05.png

Output IDAT size = 30786 bytes
Output file size = 30843 bytes (5649 bytes = 15.48% decrease)

** Processing: 02-06.gif
Importing GIF
640x307 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 90073 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 72204
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 71732
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 71732

Output file: 02-06.png

Output IDAT size = 71732 bytes
Output file size = 71789 bytes (18284 bytes = 20.30% decrease)

** Processing: 02-07.gif
Importing GIF
450x527 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 52543 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 44076
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 43216
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 43216

Output file: 02-07.png

Output IDAT size = 43216 bytes
Output file size = 43273 bytes (9270 bytes = 17.64% decrease)

** Processing: 02-08.gif
Importing GIF
641x471 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 24822 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 21996
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 21880
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 21880

Output file: 02-08.png

Output IDAT size = 21880 bytes
Output file size = 21937 bytes (2885 bytes = 11.62% decrease)

** Processing: 02-09.gif
Importing GIF
737x315 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 37715 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 30168
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 29915
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 29915

Output file: 02-09.png

Output IDAT size = 29915 bytes
Output file size = 29972 bytes (7743 bytes = 20.53% decrease)

** Processing: 02-10.gif
Importing GIF
616x672 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 90549 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 75602
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 74404
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 74404

Output file: 02-10.png

Output IDAT size = 74404 bytes
Output file size = 74461 bytes (16088 bytes = 17.77% decrease)

** Processing: 02-11.gif
Importing GIF
712x497 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 109691 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 88970
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 88970

Output file: 02-11.png

Output IDAT size = 88970 bytes
Output file size = 89027 bytes (20664 bytes = 18.84% decrease)

** Processing: 02-12.gif
Importing GIF
680x654 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 152649 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 131659
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 129431
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 129431

Output file: 02-12.png

Output IDAT size = 129431 bytes
Output file size = 129488 bytes (23161 bytes = 15.17% decrease)

** Processing: 02-13.gif
Importing GIF
1305x1058 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 504358 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 405596
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 402392
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 402392

Output file: 02-13.png

Output IDAT size = 402392 bytes
Output file size = 402449 bytes (101909 bytes = 20.38% decrease)

** Processing: 02-14.gif
Importing GIF
735x447 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 66951 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 55284
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 55284

Output file: 02-14.png

Output IDAT size = 55284 bytes
Output file size = 55341 bytes (11610 bytes = 17.34% decrease)

** Processing: 02-15.gif
Importing GIF
742x446 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 352380 bytes

Trying:
  zc = 9  zm = 8  zs = 0  f = 0OptiPNG 0.6.3: Advanced PNG optimizer.
Copyright (C) 2001-2009 Cosmin Truta.

** Processing: 01-01.gif
Importing GIF
548x497 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 01-02.gif
Importing GIF
677x549 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 01-03.gif
Importing GIF
746x329 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 01-04.gif
Importing GIF
451x401 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 01-05.gif
Importing GIF
656x899 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 01-06.gif
Importing GIF
674x794 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 01-07.gif
Importing GIF
705x552 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 01-08.gif
Importing GIF
754x449 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 01-09.gif
Importing GIF
698x948 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 01-10.gif
Importing GIF
790x1002 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 01-11.gif
Importing GIF
380x357 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 01-12a.gif
Importing GIF
650x577 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 01-12b.gif
Importing GIF
648x482 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 01-13.gif
Importing GIF
767x1028 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 01-14.gif
Importing GIF
736x1156 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 01-15.gif
Importing GIF
668x982 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 01-16.gif
Importing GIF
680x728 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 01-17.gif
Importing GIF
726x1057 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 02-01.gif
Importing GIF
786x501 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 02-02-04.gif
Importing GIF
670x1010 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 02-05.gif
Importing GIF
565x361 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 02-06.gif
Importing GIF
640x307 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 02-07.gif
Importing GIF
450x527 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 02-08.gif
Importing GIF
641x471 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 02-09.gif
Importing GIF
737x315 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 02-10.gif
Importing GIF
616x672 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 02-11.gif
Importing GIF
712x497 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 02-12.gif
Importing GIF
680x654 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 02-13.gif
Importing GIF
1305x1058 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 02-14.gif
Importing GIF
735x447 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Error: The output file exists, try backing it up (use -keep)

** Processing: 02-15.gif
Importing GIF
742x446 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 352380 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 272163
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 271865
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 266153
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 266153

Output file: 02-15.png

Output IDAT size = 266153 bytes
Output file size = 266210 bytes (86170 bytes = 24.45% decrease)

** Processing: 03-01.gif
Importing GIF
773x1013 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 245108 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 203170
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 202966
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 198412
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 198120
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1OptiPNG 0.6.3: Advanced PNG optimizer.
Copyright (C) 2001-2009 Cosmin Truta.

** Processing: 01-01.gif
Importing GIF
548x497 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 346680 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 263215
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 262890
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 237806
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 235604
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1		IDAT size = 235599
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 233412
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3		IDAT size = 233406
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 233109
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5		IDAT size = 233108
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5		IDAT size = 233106
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 3  f = 5		IDAT size = 233106

Output file: 01-01.png

Output IDAT size = 233106 bytes
Output file size = 233163 bytes (113517 bytes = 32.74% decrease)

** Processing: 01-02.gif
Importing GIF
677x549 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 74344 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 61439
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 61393
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 60654
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 60556
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 60556

Output file: 01-02.png

Output IDAT size = 60556 bytes
Output file size = 60613 bytes (13731 bytes = 18.47% decrease)

** Processing: 01-03.gif
Importing GIF
746x329 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 91953 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 74021
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 73412
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 73412

Output file: 01-03.png

Output IDAT size = 73412 bytes
Output file size = 73469 bytes (18484 bytes = 20.10% decrease)

** Processing: 01-04.gif
Importing GIF
451x401 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 227718 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 172289
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 171511
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 171396
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0		IDAT size = 171396
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 159276
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 157799
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1		IDAT size = 157799
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1		IDAT size = 157799
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3		IDAT size = 156524
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 154787
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3		IDAT size = 154787
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3		IDAT size = 154787
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 154709
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5		IDAT size = 154709
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5		IDAT size = 154709
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 1  zm = 9  zs = 2  f = 5		IDAT size = 154709

Output file: 01-04.png

Output IDAT size = 154709 bytes
Output file size = 154766 bytes (72952 bytes = 32.04% decrease)

** Processing: 01-05.gif
Importing GIF
656x899 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 595666 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 467321
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 465930
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 465330
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 449046
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 444345
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 444345

Output file: 01-05.png

Output IDAT size = 444345 bytes
Output file size = 444402 bytes (151264 bytes = 25.21% decrease)

** Processing: 01-06.gif
Importing GIF
674x794 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 486962 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 371596
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 370791
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 351407
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 348350
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 344971
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 343052
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 343052

Output file: 01-06.png

Output IDAT size = 343052 bytes
Output file size = 343109 bytes (143853 bytes = 29.36% decrease)

** Processing: 01-07.gif
Importing GIF
705x552 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 143975 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 114275
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 112828
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 112828

Output file: 01-07.png

Output IDAT size = 112828 bytes
Output file size = 112885 bytes (31090 bytes = 21.59% decrease)

** Processing: 01-08.gif
Importing GIF
754x449 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 396011 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 302705
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 302476
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 302459
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 296553
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 294790
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2		IDAT size = 293761
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3		IDAT size = 290602
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 288353
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 288189
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 288189

Output file: 01-08.png

Output IDAT size = 288189 bytes
Output file size = 288246 bytes (107765 bytes = 27.21% decrease)

** Processing: 01-09.gif
Importing GIF
698x948 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 212446 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 164456
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 163231
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 162435
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 162435

Output file: 01-09.png

Output IDAT size = 162435 bytes
Output file size = 162492 bytes (49954 bytes = 23.51% decrease)

** Processing: 01-10.gif
Importing GIF
790x1002 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 123278 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 105154
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 105074
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 103459
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 103181
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 103181

Output file: 01-10.png

Output IDAT size = 103181 bytes
Output file size = 103238 bytes (20040 bytes = 16.26% decrease)

** Processing: 01-11.gif
Importing GIF
380x357 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 77837 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 63924
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 63862
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 62844
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 62820
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 62820

Output file: 01-11.png

Output IDAT size = 62820 bytes
Output file size = 62877 bytes (14960 bytes = 19.22% decrease)

** Processing: 01-12a.gif
Importing GIF
650x577 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 373258 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 290407
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 290325
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 290197
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 280795
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 278941
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 278941

Output file: 01-12a.png

Output IDAT size = 278941 bytes
Output file size = 278998 bytes (94260 bytes = 25.25% decrease)

** Processing: 01-12b.gif
Importing GIF
648x482 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 367531 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 280558
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 280139
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 269763
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 267542
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 265781
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 265385
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 265385

Output file: 01-12b.png

Output IDAT size = 265385 bytes
Output file size = 265442 bytes (102089 bytes = 27.78% decrease)

** Processing: 01-13.gif
Importing GIF
767x1028 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 330118 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 260758
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 260628
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 258605
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 258581
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 258581

Output file: 01-13.png

Output IDAT size = 258581 bytes
Output file size = 258638 bytes (71480 bytes = 21.65% decrease)

** Processing: 01-14.gif
Importing GIF
736x1156 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 135765 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 117196
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 117180
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 114238
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 114222
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 114222

Output file: 01-14.png

Output IDAT size = 114222 bytes
Output file size = 114279 bytes (21486 bytes = 15.83% decrease)

** Processing: 01-15.gif
Importing GIF
668x982 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 122527 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 105104
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 102997
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 102839
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 102839

Output file: 01-15.png

Output IDAT size = 102839 bytes
Output file size = 102896 bytes (19631 bytes = 16.02% decrease)

** Processing: 01-16.gif
Importing GIF
680x728 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 119016 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 99973
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 98054
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 98054

Output file: 01-16.png

Output IDAT size = 98054 bytes
Output file size = 98111 bytes (20905 bytes = 17.56% decrease)

** Processing: 01-17.gif
Importing GIF
726x1057 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 179034 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 147704
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 147475
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 147143
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 146917
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 146917

Output file: 01-17.png

Output IDAT size = 146917 bytes
Output file size = 146974 bytes (32060 bytes = 17.91% decrease)

** Processing: 02-01.gif
Importing GIF
786x501 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 426482 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 345561
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 343961
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 297688
  zc = 9  zm = 8  zs = 0  f = 1		IDAT size = 296924
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 281037
  zc = 9  zm = 8  zs = 1  f = 1		IDAT size = 279979
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1		IDAT size = 279962
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 278240
  zc = 9  zm = 8  zs = 1  f = 3		IDAT size = 277755
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 275495
  zc = 9  zm = 8  zs = 1  f = 5		IDAT size = 274836
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5		IDAT size = 274768

Selecting parameters:
  zc = 9  zm = 8  zs = 3  f = 5		IDAT size = 274768

Output file: 02-01.png

Output IDAT size = 274768 bytes
Output file size = 274825 bytes (151657 bytes = 35.56% decrease)

** Processing: 02-02-04.gif
Importing GIF
670x1010 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 641992 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 524785
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 522883
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 522311
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 520716
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 481918
  zc = 9  zm = 8  zs = 0  f = 1		IDAT size = 481501
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 456341
  zc = 9  zm = 8  zs = 1  f = 1		IDAT size = 454798
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 450826
  zc = 9  zm = 8  zs = 1  f = 3		IDAT size = 450226
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 447863
  zc = 9  zm = 8  zs = 1  f = 5		IDAT size = 447280
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 5		IDAT size = 447280

Output file: 02-02-04.png

Output IDAT size = 447280 bytes
Output file size = 447337 bytes (194655 bytes = 30.41% decrease)

** Processing: 02-05.gif
Importing GIF
565x361 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 36492 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 30749
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 30749

Output file: 02-05.png

Output IDAT size = 30749 bytes
Output file size = 30806 bytes (5686 bytes = 15.58% decrease)

** Processing: 02-06.gif
Importing GIF
640x307 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 90073 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 72250
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 72204
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 71692
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 71692

Output file: 02-06.png

Output IDAT size = 71692 bytes
Output file size = 71749 bytes (18324 bytes = 20.34% decrease)

** Processing: 02-07.gif
Importing GIF
450x527 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 52543 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 44053
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 43277
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 43216
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 43216

Output file: 02-07.png

Output IDAT size = 43216 bytes
Output file size = 43273 bytes (9270 bytes = 17.64% decrease)

** Processing: 02-08.gif
Importing GIF
641x471 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 24822 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 21996
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 21996
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 21965
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 21880
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 21880

Output file: 02-08.png

Output IDAT size = 21880 bytes
Output file size = 21937 bytes (2885 bytes = 11.62% decrease)

** Processing: 02-09.gif
Importing GIF
737x315 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 37715 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 30187
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 30168
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 29975
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 29915
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 29915

Output file: 02-09.png

Output IDAT size = 29915 bytes
Output file size = 29972 bytes (7743 bytes = 20.53% decrease)

** Processing: 02-10.gif
Importing GIF
616x672 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 90549 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 75637
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 75602
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 74520
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 74404
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 74404

Output file: 02-10.png

Output IDAT size = 74404 bytes
Output file size = 74461 bytes (16088 bytes = 17.77% decrease)

** Processing: 02-11.gif
Importing GIF
712x497 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 109691 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 89049
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 88970
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 88970

Output file: 02-11.png

Output IDAT size = 88970 bytes
Output file size = 89027 bytes (20664 bytes = 18.84% decrease)

** Processing: 02-12.gif
Importing GIF
680x654 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 152649 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 131735
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 131659
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 129424
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 129424

Output file: 02-12.png

Output IDAT size = 129424 bytes
Output file size = 129481 bytes (23168 bytes = 15.18% decrease)

** Processing: 02-13.gif
Importing GIF
1305x1058 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 504358 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 405916
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 405596
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 402890
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 402392
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 402392

Output file: 02-13.png

Output IDAT size = 402392 bytes
Output file size = 402449 bytes (101909 bytes = 20.38% decrease)

** Processing: 02-14.gif
Importing GIF
735x447 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 66951 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 55283
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 55283

Output file: 02-14.png

Output IDAT size = 55283 bytes
Output file size = 55340 bytes (11611 bytes = 17.34% decrease)

** Processing: 02-15.gif
Importing GIF
742x446 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 352380 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 272163
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 271865
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 266153
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 266153

Output file: 02-15.png

Output IDAT size = 266153 bytes
Output file size = 266210 bytes (86170 bytes = 24.45% decrease)

** Processing: 03-01.gif
Importing GIF
773x1013 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 245108 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 203170
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 202966
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 198412
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 198120
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 198120

Output file: 03-01.png

Output IDAT size = 198120 bytes
Output file size = 198177 bytes (46931 bytes = 19.15% decrease)

** Processing: 03-02.gif
Importing GIF
724x499 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 442628 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 336299
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 335387
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 335190
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 313901
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 310823
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3		IDAT size = 310777
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 307155
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3		IDAT size = 307155
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3		IDAT size = 307154
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 306970
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5		IDAT size = 306970
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5		IDAT size = 306970
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 1  zm = 9  zs = 2  f = 5		IDAT size = 306970

Output file: 03-02.png

Output IDAT size = 306970 bytes
Output file size = 307027 bytes (135601 bytes = 30.82% decrease)

** Processing: 03-03.gif
Importing GIF
690x1144 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 187308 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 151146
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 150983
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 147994
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 147941
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 147941

Output file: 03-03.png

Output IDAT size = 147941 bytes
Output file size = 147998 bytes (39310 bytes = 20.99% decrease)

** Processing: 04-01.gif
Importing GIF
680x740 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 58866 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 49874
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 49031
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 49031

Output file: 04-01.png

Output IDAT size = 49031 bytes
Output file size = 49088 bytes (9778 bytes = 16.61% decrease)

** Processing: 04-02.gif
Importing GIF
449x408 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 78148 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 63019
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 62164
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 61999
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 61999

Output file: 04-02.png

Output IDAT size = 61999 bytes
Output file size = 62056 bytes (16092 bytes = 20.59% decrease)

** Processing: 04-03.gif
Importing GIF
750x1056 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 179665 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 150346
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 150260
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 147477
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 147434
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 147434

Output file: 04-03.png

Output IDAT size = 147434 bytes
Output file size = 147491 bytes (32174 bytes = 17.91% decrease)

** Processing: 04-04.gif
Importing GIF
620x660 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 101368 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 84750
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 84574
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 83373
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 83286
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 83286

Output file: 04-04.png

Output IDAT size = 83286 bytes
Output file size = 83343 bytes (18025 bytes = 17.78% decrease)

** Processing: 04-05.gif
Importing GIF
573x535 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 64659 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 53378
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 53334
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 52476
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 52449
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 52449

Output file: 04-05.png

Output IDAT size = 52449 bytes
Output file size = 52506 bytes (12153 bytes = 18.80% decrease)

** Processing: 04-06.gif
Importing GIF
750x960 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 149003 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 124438
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 124135
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 122048
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 121376
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 121376

Output file: 04-06.png

Output IDAT size = 121376 bytes
Output file size = 121433 bytes (27570 bytes = 18.50% decrease)

** Processing: 04-07.gif
Importing GIF
636x736 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 156329 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 129540
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 126543
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 126403
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 126403

Output file: 04-07.png

Output IDAT size = 126403 bytes
Output file size = 126460 bytes (29869 bytes = 19.11% decrease)

** Processing: 05-01.gif
Importing GIF
593x350 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 90489 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 71576
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 71532
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 71046
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 70919
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 70919

Output file: 05-01.png

Output IDAT size = 70919 bytes
Output file size = 70976 bytes (19513 bytes = 21.56% decrease)

** Processing: 05-02.gif
Importing GIF
677x294 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 54652 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 46006
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 45982
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 45114
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 45073
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 45073

Output file: 05-02.png

Output IDAT size = 45073 bytes
Output file size = 45130 bytes (9522 bytes = 17.42% decrease)

** Processing: 05-03.gif
Importing GIF
412x454 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 222822 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 166008
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 165314
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 164316
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2		IDAT size = 164310
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3		IDAT size = 162347
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 161222
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 160582
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 160582

Output file: 05-03.png

Output IDAT size = 160582 bytes
Output file size = 160639 bytes (62183 bytes = 27.91% decrease)

** Processing: 05-04.gif
Importing GIF
682x774 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 156798 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 134391
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 134350
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 133918
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 133840
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 133840

Output file: 05-04.png

Output IDAT size = 133840 bytes
Output file size = 133897 bytes (22901 bytes = 14.61% decrease)

** Processing: 05-05.gif
Importing GIF
257x284 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 23710 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 19898
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 19898
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 19863
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 19863

Output file: 05-05.png

Output IDAT size = 19863 bytes
Output file size = 19920 bytes (3790 bytes = 15.98% decrease)

** Processing: 05-06.gif
Importing GIF
272x285 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 38353 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 31814
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 31489
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 31489

Output file: 05-06.png

Output IDAT size = 31489 bytes
Output file size = 31546 bytes (6807 bytes = 17.75% decrease)

** Processing: 05-07.gif
Importing GIF
440x282 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 26546 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 21660
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 21660
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 21660

Output file: 05-07.png

Output IDAT size = 21660 bytes
Output file size = 21717 bytes (4829 bytes = 18.19% decrease)

** Processing: 05-08.gif
Importing GIF
744x1197 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 248256 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 208231
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 207975
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 205784
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 205398
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 205398

Output file: 05-08.png

Output IDAT size = 205398 bytes
Output file size = 205455 bytes (42801 bytes = 17.24% decrease)

** Processing: 05-09.gif
Importing GIF
437x393 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 34437 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 29455
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 29113
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 29113

Output file: 05-09.png

Output IDAT size = 29113 bytes
Output file size = 29170 bytes (5267 bytes = 15.29% decrease)

** Processing: 05-10.gif
Importing GIF
516x207 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 61109 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 44672
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 44642
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 44642

Output file: 05-10.png

Output IDAT size = 44642 bytes
Output file size = 44699 bytes (16410 bytes = 26.85% decrease)

** Processing: 05-11.gif
Importing GIF
623x360 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 51435 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 39542
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 39523
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 39523

Output file: 05-11.png

Output IDAT size = 39523 bytes
Output file size = 39580 bytes (11855 bytes = 23.05% decrease)

** Processing: 05-12.gif
Importing GIF
738x276 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 215664 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 159388
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 159312
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 158668
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 154868
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 152638
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3		IDAT size = 152582
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 149977
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 149647
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 149647

Output file: 05-12.png

Output IDAT size = 149647 bytes
Output file size = 149704 bytes (65960 bytes = 30.58% decrease)

** Processing: 05-13.gif
Importing GIF
323x333 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 57459 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 45921
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 45259
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 45011
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 43213
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 42458
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2		IDAT size = 42302
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 41614
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 41614

Output file: 05-13.png

Output IDAT size = 41614 bytes
Output file size = 41671 bytes (15788 bytes = 27.48% decrease)

** Processing: 05-14.gif
Importing GIF
314x1140 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 134825 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 107219
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 107219

Output file: 05-14.png

Output IDAT size = 107219 bytes
Output file size = 107276 bytes (27549 bytes = 20.43% decrease)

** Processing: 05-15.gif
Importing GIF
699x1050 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 145281 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 122362
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 122210
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 120865
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 120763
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 120763

Output file: 05-15.png

Output IDAT size = 120763 bytes
Output file size = 120820 bytes (24461 bytes = 16.84% decrease)

** Processing: 05-16.gif
Importing GIF
674x846 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 306340 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 236289
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 235913
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 234804
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 234720
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 234720

Output file: 05-16.png

Output IDAT size = 234720 bytes
Output file size = 234777 bytes (71563 bytes = 23.36% decrease)

** Processing: 05-17.gif
Importing GIF
405x1203 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 517562 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 393231
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 391113
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 389347
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 380041
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 375156
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 372333
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 370757
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 370757

Output file: 05-17.png

Output IDAT size = 370757 bytes
Output file size = 370814 bytes (146748 bytes = 28.22% decrease)

** Processing: 05-18.gif
Importing GIF
736x1136 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 317940 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 248606
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 247667
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 245859
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 245859

Output file: 05-18.png

Output IDAT size = 245859 bytes
Output file size = 245916 bytes (72024 bytes = 22.65% decrease)

** Processing: 05-19.gif
Importing GIF
676x919 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 698375 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 534017
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 533886
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 532591
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 532245
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 509322
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 502632
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 498239
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 495391
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 495391

Output file: 05-19.png

Output IDAT size = 495391 bytes
Output file size = 495448 bytes (202927 bytes = 28.99% decrease)

** Processing: 05-20.gif
Importing GIF
696x513 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 76691 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 64717
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 64655
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 64655

Output file: 05-20.png

Output IDAT size = 64655 bytes
Output file size = 64712 bytes (11979 bytes = 15.62% decrease)

** Processing: 05-21.gif
Importing GIF
602x390 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 285125 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 217878
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 217442
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 201916
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 200332
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 198793
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 197957
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 197957

Output file: 05-21.png

Output IDAT size = 197957 bytes
Output file size = 198014 bytes (87111 bytes = 30.55% decrease)

** Processing: 05-22.gif
Importing GIF
288x534 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 58589 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 49601
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 49586
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 49042
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 49016
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 49016

Output file: 05-22.png

Output IDAT size = 49016 bytes
Output file size = 49073 bytes (9516 bytes = 16.24% decrease)

** Processing: 05-23.gif
Importing GIF
433x358 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 48253 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 40976
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 40896
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 40896

Output file: 05-23.png

Output IDAT size = 40896 bytes
Output file size = 40953 bytes (7300 bytes = 15.13% decrease)

** Processing: 05-24.gif
Importing GIF
593x311 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 75476 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 61947
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 61242
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 61185
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 61185

Output file: 05-24.png

Output IDAT size = 61185 bytes
Output file size = 61242 bytes (14234 bytes = 18.86% decrease)

** Processing: 05-25.gif
Importing GIF
654x558 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 443423 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 336076
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 335640
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 309520
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 305645
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1		IDAT size = 305634
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 302012
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3		IDAT size = 302012
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3		IDAT size = 302011
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 301734
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5		IDAT size = 301734
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5		IDAT size = 301734
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 1  zm = 9  zs = 2  f = 5		IDAT size = 301734

Output file: 05-25.png

Output IDAT size = 301734 bytes
Output file size = 301791 bytes (141632 bytes = 32.19% decrease)

** Processing: 05-26.gif
Importing GIF
656x584 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 70028 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 53316
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 53308
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 51404
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 51190
  zc = 9  zm = 8  zs = 1  f = 1		IDAT size = 51122
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 1		IDAT size = 51122

Output file: 05-26.png

Output IDAT size = 51122 bytes
Output file size = 51179 bytes (18849 bytes = 26.92% decrease)

** Processing: 05-27.gif
Importing GIF
420x970 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 85454 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 75623
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 75523
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 75523

Output file: 05-27.png

Output IDAT size = 75523 bytes
Output file size = 75580 bytes (9874 bytes = 11.55% decrease)

** Processing: 05-28.gif
Importing GIF
655x503 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 394310 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 294198
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 292829
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 282385
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 279230
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 277859
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 277394
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 277394

Output file: 05-28.png

Output IDAT size = 277394 bytes
Output file size = 277451 bytes (116859 bytes = 29.64% decrease)

** Processing: 05-29.gif
Importing GIF
599x726 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 445000 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 342131
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 340832
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 336447
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 334543
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 334543

Output file: 05-29.png

Output IDAT size = 334543 bytes
Output file size = 334600 bytes (110400 bytes = 24.53% decrease)

** Processing: 05-29_1.gif
Importing GIF
601x744 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 396154 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 312867
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 311687
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 307689
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 306785
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 306785

Output file: 05-29_1.png

Output IDAT size = 306785 bytes
Output file size = 306842 bytes (89312 bytes = 22.54% decrease)

** Processing: 05-30.gif
Importing GIF
755x495 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 50532 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 43409
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 43042
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 43042

Output file: 05-30.png

Output IDAT size = 43042 bytes
Output file size = 43099 bytes (7433 bytes = 14.71% decrease)

** Processing: 05-31.gif
Importing GIF
266x320 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 19364 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 16208
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 16208
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 16208

Output file: 05-31.png

Output IDAT size = 16208 bytes
Output file size = 16265 bytes (3099 bytes = 16.00% decrease)

** Processing: 06-01.gif
Importing GIF
651x421 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 332792 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 252814
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 252745
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 234760
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 231962
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 229175
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 228982
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 228982

Output file: 06-01.png

Output IDAT size = 228982 bytes
Output file size = 229039 bytes (103753 bytes = 31.18% decrease)

** Processing: 06-02.gif
Importing GIF
670x289 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 25962 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 22332
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 22332
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 22332

Output file: 06-02.png

Output IDAT size = 22332 bytes
Output file size = 22389 bytes (3573 bytes = 13.76% decrease)

** Processing: 06-03.gif
Importing GIF
627x272 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 105575 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 79445
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 78813
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 78813

Output file: 06-03.png

Output IDAT size = 78813 bytes
Output file size = 78870 bytes (26705 bytes = 25.29% decrease)

** Processing: 06-04.gif
Importing GIF
757x415 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 77898 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 64340
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 62886
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 62886

Output file: 06-04.png

Output IDAT size = 62886 bytes
Output file size = 62943 bytes (14955 bytes = 19.20% decrease)

** Processing: 06-05.gif
Importing GIF
795x536 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 90561 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 73050
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 73043
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 73043

Output file: 06-05.png

Output IDAT size = 73043 bytes
Output file size = 73100 bytes (17461 bytes = 19.28% decrease)

** Processing: 06-06.gif
Importing GIF
792x859 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 135736 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 112130
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 112043
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 112043

Output file: 06-06.png

Output IDAT size = 112043 bytes
Output file size = 112100 bytes (23636 bytes = 17.41% decrease)

** Processing: 06-07.gif
Importing GIF
529x357 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 225096 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 170971
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 169670
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 166566
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 165583
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 164639
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 164500
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 164500

Output file: 06-07.png

Output IDAT size = 164500 bytes
Output file size = 164557 bytes (60539 bytes = 26.89% decrease)

** Processing: 06-08.gif
Importing GIF
756x557 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 130556 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 111370
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 110507
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 110507

Output file: 06-08.png

Output IDAT size = 110507 bytes
Output file size = 110564 bytes (19992 bytes = 15.31% decrease)

** Processing: 06-09.gif
Importing GIF
767x551 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 104590 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 85619
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 85178
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 84963
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 84590
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 84590

Output file: 06-09.png

Output IDAT size = 84590 bytes
Output file size = 84647 bytes (19943 bytes = 19.07% decrease)

** Processing: 06-10.gif
Importing GIF
774x942 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 272193 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 225477
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 221630
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 221630

Output file: 06-10.png

Output IDAT size = 221630 bytes
Output file size = 221687 bytes (50506 bytes = 18.56% decrease)

** Processing: 06-11.gif
Importing GIF
673x915 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 351244 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 262467
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 261932
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 261425
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 261021
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 261021

Output file: 06-11.png

Output IDAT size = 261021 bytes
Output file size = 261078 bytes (90166 bytes = 25.67% decrease)

** Processing: 06-12.gif
Importing GIF
477x280 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 70304 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 52156
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 52060
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 52060

Output file: 06-12.png

Output IDAT size = 52060 bytes
Output file size = 52117 bytes (18187 bytes = 25.87% decrease)

** Processing: 06-13.gif
Importing GIF
578x396 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 85800 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 71221
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 71169
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 70306
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 70306

Output file: 06-13.png

Output IDAT size = 70306 bytes
Output file size = 70363 bytes (15437 bytes = 17.99% decrease)

** Processing: 06-14.gif
Importing GIF
657x480 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 38691 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 34203
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 34176
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 33932
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 33798
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 33798

Output file: 06-14.png

Output IDAT size = 33798 bytes
Output file size = 33855 bytes (4836 bytes = 12.50% decrease)

** Processing: 06-15.gif
Importing GIF
491x421 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 45079 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 37128
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 36379
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 36322
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 36322

Output file: 06-15.png

Output IDAT size = 36322 bytes
Output file size = 36379 bytes (8700 bytes = 19.30% decrease)

** Processing: 06-16.gif
Importing GIF
492x704 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 227886 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 187690
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 187417
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 187417

Output file: 06-16.png

Output IDAT size = 187417 bytes
Output file size = 187474 bytes (40412 bytes = 17.73% decrease)

** Processing: 06-16_1.gif
Importing GIF
503x699 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 262214 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 204827
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 204551
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 204398
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 204120
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 204120

Output file: 06-16_1.png

Output IDAT size = 204120 bytes
Output file size = 204177 bytes (58037 bytes = 22.13% decrease)

** Processing: 07-01.gif
Importing GIF
770x973 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 76083 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 67836
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 66607
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 66588
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 66588

Output file: 07-01.png

Output IDAT size = 66588 bytes
Output file size = 66645 bytes (9438 bytes = 12.40% decrease)

** Processing: 07-02.gif
Importing GIF
599x579 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 204537 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 166921
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 163852
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 163852

Output file: 07-02.png

Output IDAT size = 163852 bytes
Output file size = 163909 bytes (40628 bytes = 19.86% decrease)

** Processing: 07-03.gif
Importing GIF
248x248 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 13483 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 11274
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 11274
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 11232
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 11232
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 11232

Output file: 07-03.png

Output IDAT size = 11232 bytes
Output file size = 11289 bytes (2194 bytes = 16.27% decrease)

** Processing: 07-04.gif
Importing GIF
786x1074 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 608199 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 489486
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 479799
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 479799

Output file: 07-04.png

Output IDAT size = 479799 bytes
Output file size = 479856 bytes (128343 bytes = 21.04% decrease)

** Processing: 07-05.gif
Importing GIF
745x973 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 216305 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 173386
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 173320
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 171061
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 170544
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 170544

Output file: 07-05.png

Output IDAT size = 170544 bytes
Output file size = 170601 bytes (45704 bytes = 21.13% decrease)

** Processing: 07-06.gif
Importing GIF
656x662 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 526018 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 389338
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 389210
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 388078
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 387961
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 380925
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 378668
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3		IDAT size = 375172
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 372457
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 371080
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 371080

Output file: 07-06.png

Output IDAT size = 371080 bytes
Output file size = 371137 bytes (154881 bytes = 29.22% decrease)

** Processing: 07-07.gif
Importing GIF
788x936 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 378061 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 303552
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 301800
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 301800

Output file: 07-07.png

Output IDAT size = 301800 bytes
Output file size = 301857 bytes (76204 bytes = 20.16% decrease)

** Processing: 07-08.gif
Importing GIF
624x458 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 65643 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 55471
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 55452
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 54176
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 54176

Output file: 07-08.png

Output IDAT size = 54176 bytes
Output file size = 54233 bytes (11410 bytes = 17.38% decrease)

** Processing: 07-09.gif
Importing GIF
775x258 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 26763 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 22412
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 22412
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 22412

Output file: 07-09.png

Output IDAT size = 22412 bytes
Output file size = 22469 bytes (4294 bytes = 16.04% decrease)

** Processing: 07-10.gif
Importing GIF
765x711 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 166510 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 138022
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 137894
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 136598
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 136526
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 136526

Output file: 07-10.png

Output IDAT size = 136526 bytes
Output file size = 136583 bytes (29927 bytes = 17.97% decrease)

** Processing: 07-11.gif
Importing GIF
570x471 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 35092 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 29762
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 29746
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 29411
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 29407
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 29407

Output file: 07-11.png

Output IDAT size = 29407 bytes
Output file size = 29464 bytes (5628 bytes = 16.04% decrease)

** Processing: 07-12.gif
Importing GIF
603x292 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 19165 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 16350
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 16350
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 16301
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 16301
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 16301

Output file: 07-12.png

Output IDAT size = 16301 bytes
Output file size = 16358 bytes (2807 bytes = 14.65% decrease)

** Processing: 07-13.gif
Importing GIF
713x656 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 119411 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 104604
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 101259
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 101254
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 101254

Output file: 07-13.png

Output IDAT size = 101254 bytes
Output file size = 101311 bytes (18100 bytes = 15.16% decrease)

** Processing: 07-14.gif
Importing GIF
738x948 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 128400 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 111514
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 109090
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 109090

Output file: 07-14.png

Output IDAT size = 109090 bytes
Output file size = 109147 bytes (19253 bytes = 14.99% decrease)

** Processing: 07-15.gif
Importing GIF
627x557 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 89687 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 75404
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 75307
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 73826
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 73528
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 73528

Output file: 07-15.png

Output IDAT size = 73528 bytes
Output file size = 73585 bytes (16102 bytes = 17.95% decrease)

** Processing: 07-16.gif
Importing GIF
620x345 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 123657 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 98251
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 95440
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 95440

Output file: 07-16.png

Output IDAT size = 95440 bytes
Output file size = 95497 bytes (28160 bytes = 22.77% decrease)

** Processing: 07-17.gif
Importing GIF
665x513 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 128999 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 104125
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 104091
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 103342
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 103262
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 103262

Output file: 07-17.png

Output IDAT size = 103262 bytes
Output file size = 103319 bytes (25680 bytes = 19.91% decrease)

** Processing: 08-01.gif
Importing GIF
758x438 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 186450 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 144330
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 143991
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 143715
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 143008
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 143008

Output file: 08-01.png

Output IDAT size = 143008 bytes
Output file size = 143065 bytes (43385 bytes = 23.27% decrease)

** Processing: 08-02.gif
Importing GIF
250x390 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 35763 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 29189
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 28778
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 28778

Output file: 08-02.png

Output IDAT size = 28778 bytes
Output file size = 28835 bytes (6928 bytes = 19.37% decrease)

** Processing: 08-03.gif
Importing GIF
659x263 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 34144 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 27994
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 27546
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 27536
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 27536

Output file: 08-03.png

Output IDAT size = 27536 bytes
Output file size = 27593 bytes (6551 bytes = 19.19% decrease)

** Processing: 08-04.gif
Importing GIF
716x790 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 182405 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 153607
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 151253
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 151253

Output file: 08-04.png

Output IDAT size = 151253 bytes
Output file size = 151310 bytes (31095 bytes = 17.05% decrease)

** Processing: 08-05.gif
Importing GIF
674x453 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 375096 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 285406
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 284926
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 262268
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 258919
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1		IDAT size = 258916
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1		IDAT size = 258901
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 255724
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3		IDAT size = 255721
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 255370
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 255370

Output file: 08-05.png

Output IDAT size = 255370 bytes
Output file size = 255427 bytes (119669 bytes = 31.90% decrease)

** Processing: 08-06.gif
Importing GIF
668x608 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 114118 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 94303
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 94303
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 91601
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 91601

Output file: 08-06.png

Output IDAT size = 91601 bytes
Output file size = 91658 bytes (22460 bytes = 19.68% decrease)

** Processing: 09-01.gif
Importing GIF
701x534 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 461461 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 348457
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 347803
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 322658
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 318883
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3		IDAT size = 318536
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 314092
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 313678
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 313678

Output file: 09-01.png

Output IDAT size = 313678 bytes
Output file size = 313735 bytes (147726 bytes = 32.11% decrease)

** Processing: 09-02.gif
Importing GIF
678x511 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 348562 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 276243
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 276099
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 275880
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 275880

Output file: 09-02.png

Output IDAT size = 275880 bytes
Output file size = 275937 bytes (72625 bytes = 20.84% decrease)

** Processing: 09-03.gif
Importing GIF
1139x1151 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 478583 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 374452
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 374120
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 373566
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 373181
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 373181

Output file: 09-03.png

Output IDAT size = 373181 bytes
Output file size = 373238 bytes (105345 bytes = 21.95% decrease)

** Processing: 09-03a-c.gif
Importing GIF
492x1138 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 584998 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 443388
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 441589
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 411991
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 408315
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 405039
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 402320
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 402320

Output file: 09-03a-c.png

Output IDAT size = 402320 bytes
Output file size = 402377 bytes (182621 bytes = 31.49% decrease)

** Processing: 09-03d-e.gif
Importing GIF
581x934 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 538331 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 404680
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 402865
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 401459
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 400027
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 383995
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 378984
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3		IDAT size = 378680
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 372963
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 371658
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 371658

Output file: 09-03d-e.png

Output IDAT size = 371658 bytes
Output file size = 371715 bytes (166616 bytes = 30.85% decrease)

** Processing: 09-04.gif
Importing GIF
660x415 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 340995 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 256538
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 255681
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 237972
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 235466
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1		IDAT size = 235466
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 233153
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3		IDAT size = 233153
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 232809
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5		IDAT size = 232809
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 3  f = 5		IDAT size = 232809

Output file: 09-04.png

Output IDAT size = 232809 bytes
Output file size = 232866 bytes (108129 bytes = 31.71% decrease)

** Processing: 09-05.gif
Importing GIF
450x584 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 95267 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 80176
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 79018
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 79007
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 79007

Output file: 09-05.png

Output IDAT size = 79007 bytes
Output file size = 79064 bytes (16203 bytes = 17.01% decrease)

** Processing: 09-06.gif
Importing GIF
741x622 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 563493 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 421213
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 421174
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 420205
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 400410
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 396740
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3		IDAT size = 396424
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 392358
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 390773
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 390773

Output file: 09-06.png

Output IDAT size = 390773 bytes
Output file size = 390830 bytes (172663 bytes = 30.83% decrease)

** Processing: 10-01.gif
Importing GIF
688x434 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 358656 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 270244
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 268999
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0		IDAT size = 268998
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 253976
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 250553
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 248755
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 248231
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 248231

Output file: 10-01.png

Output IDAT size = 248231 bytes
Output file size = 248288 bytes (110368 bytes = 30.77% decrease)

** Processing: 10-02.gif
Importing GIF
652x880 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 693938 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 529297
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 528247
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 488834
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 484330
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 482004
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 479997
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 479997

Output file: 10-02.png

Output IDAT size = 479997 bytes
Output file size = 480054 bytes (213884 bytes = 31.00% decrease)

** Processing: 10-03a.gif
Importing GIF
617x614 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 447895 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 331058
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 329013
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 327038
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3		IDAT size = 323212
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 319754
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 319053
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 319053

Output file: 10-03a.png

Output IDAT size = 319053 bytes
Output file size = 319110 bytes (128785 bytes = 28.62% decrease)

** Processing: 10-03b.gif
Importing GIF
480x671 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 401684 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 299513
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 299427
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 299236
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 283655
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 281361
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3		IDAT size = 278481
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 275558
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 275314
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 275314

Output file: 10-03b.png

Output IDAT size = 275314 bytes
Output file size = 275371 bytes (126313 bytes = 31.45% decrease)

** Processing: 10-04.gif
Importing GIF
661x429 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 350994 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 267092
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 266630
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 266459
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0		IDAT size = 266418
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 248061
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 245995
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1		IDAT size = 245995
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1		IDAT size = 245988
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3		IDAT size = 245660
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 243155
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3		IDAT size = 243154
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 242962
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 242962

Output file: 10-04.png

Output IDAT size = 242962 bytes
Output file size = 243019 bytes (107975 bytes = 30.76% decrease)

** Processing: 10-05.gif
Importing GIF
657x420 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 332728 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 251180
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 250981
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 250105
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 250074
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 235605
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 232581
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 230690
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 230194
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 230194

Output file: 10-05.png

Output IDAT size = 230194 bytes
Output file size = 230251 bytes (102477 bytes = 30.80% decrease)

** Processing: 10-06.gif
Importing GIF
609x669 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 89467 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 75675
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 74304
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 74116
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 74116

Output file: 10-06.png

Output IDAT size = 74116 bytes
Output file size = 74173 bytes (15294 bytes = 17.09% decrease)

** Processing: 10-07.gif
Importing GIF
741x567 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 525211 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 399079
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 398897
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1		IDAT size = 361986
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 358336
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3		IDAT size = 354736
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 354306
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 354306

Output file: 10-07.png

Output IDAT size = 354306 bytes
Output file size = 354363 bytes (170848 bytes = 32.24% decrease)

** Processing: anthropomorph.gif
Importing GIF
60x42 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 1914 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 1083
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 1083
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 1072
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 1072
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 1072

Output file: anthropomorph.png

Output IDAT size = 1072 bytes
Output file size = 1129 bytes (785 bytes = 41.01% decrease)

** Processing: biomorph.gif
Importing GIF
70x37 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 1809 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 974
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 974
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 963
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 963
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 963

Output file: biomorph.png

Output IDAT size = 963 bytes
Output file size = 1020 bytes (789 bytes = 43.62% decrease)

** Processing: chap01.gif
Importing GIF
557x356 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 46982 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 39193
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 38805
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 38694
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 38058
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 38058

Output file: chap01.png

Output IDAT size = 38058 bytes
Output file size = 38115 bytes (8867 bytes = 18.87% decrease)

** Processing: chap02.gif
Importing GIF
647x296 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 30219 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 25417
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 25263
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 25203
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 25203

Output file: chap02.png

Output IDAT size = 25203 bytes
Output file size = 25260 bytes (4959 bytes = 16.41% decrease)

** Processing: chap03.gif
Importing GIF
659x472 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 88005 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 71212
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 70747
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 69670
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 69289
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 69289

Output file: chap03.png

Output IDAT size = 69289 bytes
Output file size = 69346 bytes (18659 bytes = 21.20% decrease)

** Processing: chap04.gif
Importing GIF
524x450 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 73458 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 61785
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 61643
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 60269
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 60123
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 60123

Output file: chap04.png

Output IDAT size = 60123 bytes
Output file size = 60180 bytes (13278 bytes = 18.08% decrease)

** Processing: chap05.gif
Importing GIF
607x409 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 69901 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 56704
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 56289
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 56289

Output file: chap05.png

Output IDAT size = 56289 bytes
Output file size = 56346 bytes (13555 bytes = 19.39% decrease)

** Processing: chap06.gif
Importing GIF
649x351 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 47079 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 38831
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 38714
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 38455
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 38170
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 38170

Output file: chap06.png

Output IDAT size = 38170 bytes
Output file size = 38227 bytes (8852 bytes = 18.80% decrease)

** Processing: chap07.gif
Importing GIF
633x369 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 52603 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 42634
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 42131
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 41879
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 41879

Output file: chap07.png

Output IDAT size = 41879 bytes
Output file size = 41936 bytes (10667 bytes = 20.28% decrease)

** Processing: chap08.gif
Importing GIF
609x404 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 51675 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 44217
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 44010
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 43412
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 43060
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 43060

Output file: chap08.png

Output IDAT size = 43060 bytes
Output file size = 43117 bytes (8558 bytes = 16.56% decrease)

** Processing: chap09.gif
Importing GIF
559x395 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 93915 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 71972
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 71501
  zc = 9  zm = 9  zs = 1  f = 0
  zc = 9  zm = 8  zs = 1  f = 0
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1		IDAT size = 71432
  zc = 9  zm = 9  zs = 1  f = 1		IDAT size = 71290
  zc = 9  zm = 8  zs = 1  f = 1		IDAT size = 71120
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5		IDAT size = 70907
  zc = 9  zm = 8  zs = 0  f = 5		IDAT size = 70831
  zc = 9  zm = 9  zs = 1  f = 5		IDAT size = 70442
  zc = 9  zm = 8  zs = 1  f = 5		IDAT size = 70329
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 5		IDAT size = 70329

Output file: chap09.png

Output IDAT size = 70329 bytes
Output file size = 70386 bytes (23529 bytes = 25.05% decrease)

** Processing: chap10.gif
Importing GIF
528x325 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 53193 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 44082
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 43904
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 43518
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 43196
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 43196

Output file: chap10.png

Output IDAT size = 43196 bytes
Output file size = 43253 bytes (9940 bytes = 18.69% decrease)

** Processing: contents.gif
Importing GIF
675x491 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 50594 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 42621
  zc = 9  zm = 8  zs = 0  f = 0		IDAT size = 42603
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 41413
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 41312
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 41312

Output file: contents.png

Output IDAT size = 41312 bytes
Output file size = 41369 bytes (9225 bytes = 18.23% decrease)

** Processing: title.gif
Importing GIF
758x665 pixels, 8 bits/pixel, 256 colors in palette
Reducing image to 8 bits/pixel, grayscale
Input file size = 137575 bytes

Trying:
  zc = 9  zm = 9  zs = 0  f = 0		IDAT size = 115721
  zc = 9  zm = 8  zs = 0  f = 0
  zc = 9  zm = 9  zs = 1  f = 0		IDAT size = 113517
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 113516
  zc = 1  zm = 9  zs = 2  f = 0
  zc = 1  zm = 8  zs = 2  f = 0
  zc = 9  zm = 9  zs = 3  f = 0
  zc = 9  zm = 8  zs = 3  f = 0
  zc = 9  zm = 9  zs = 0  f = 1
  zc = 9  zm = 8  zs = 0  f = 1
  zc = 9  zm = 9  zs = 1  f = 1
  zc = 9  zm = 8  zs = 1  f = 1
  zc = 1  zm = 9  zs = 2  f = 1
  zc = 1  zm = 8  zs = 2  f = 1
  zc = 9  zm = 9  zs = 3  f = 1
  zc = 9  zm = 8  zs = 3  f = 1
  zc = 9  zm = 9  zs = 0  f = 2
  zc = 9  zm = 8  zs = 0  f = 2
  zc = 9  zm = 9  zs = 1  f = 2
  zc = 9  zm = 8  zs = 1  f = 2
  zc = 1  zm = 9  zs = 2  f = 2
  zc = 1  zm = 8  zs = 2  f = 2
  zc = 9  zm = 9  zs = 3  f = 2
  zc = 9  zm = 8  zs = 3  f = 2
  zc = 9  zm = 9  zs = 0  f = 3
  zc = 9  zm = 8  zs = 0  f = 3
  zc = 9  zm = 9  zs = 1  f = 3
  zc = 9  zm = 8  zs = 1  f = 3
  zc = 1  zm = 9  zs = 2  f = 3
  zc = 1  zm = 8  zs = 2  f = 3
  zc = 9  zm = 9  zs = 3  f = 3
  zc = 9  zm = 8  zs = 3  f = 3
  zc = 9  zm = 9  zs = 0  f = 4
  zc = 9  zm = 8  zs = 0  f = 4
  zc = 9  zm = 9  zs = 1  f = 4
  zc = 9  zm = 8  zs = 1  f = 4
  zc = 1  zm = 9  zs = 2  f = 4
  zc = 1  zm = 8  zs = 2  f = 4
  zc = 9  zm = 9  zs = 3  f = 4
  zc = 9  zm = 8  zs = 3  f = 4
  zc = 9  zm = 9  zs = 0  f = 5
  zc = 9  zm = 8  zs = 0  f = 5
  zc = 9  zm = 9  zs = 1  f = 5
  zc = 9  zm = 8  zs = 1  f = 5
  zc = 1  zm = 9  zs = 2  f = 5
  zc = 1  zm = 8  zs = 2  f = 5
  zc = 9  zm = 9  zs = 3  f = 5
  zc = 9  zm = 8  zs = 3  f = 5

Selecting parameters:
  zc = 9  zm = 8  zs = 1  f = 0		IDAT size = 113516

Output file: title.png

Output IDAT size = 113516 bytes
Output file size = 113573 bytes (24002 bytes = 17.45% decrease)

