by steps
000000 000000
000000
5b1727 5b1727
5b1727
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
591726 591726
591726
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
571725 571725
571725
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
561724 561724
561724
7f00ff 7f00ff
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7f7f00 7f7f00
7f7f00
7f7f7f 7f7f7f
7f7f7f
541823 541823
541823
7f7fff 7f7fff
7f7fff
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7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
521822 521822
521822
ff0000 ff0000
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ff007f ff007f
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511821 511821
511821
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
4f1820 4f1820
4f1820
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
4e1920 4e1920
4e1920