by steps
000000 000000
000000
6c8743 6c8743
6c8743
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
6c8640 6c8640
6c8640
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
6d863d 6d863d
6d863d
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f 7f007f
7f007f
6e853a 6e853a
6e853a
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7f00ff
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7f7f7f
6f8537 6f8537
6f8537
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7f7fff
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7fff7f 7fff7f
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7fffff 7fffff
7fffff
708534 708534
708534
ff0000 ff0000
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718431 718431
718431
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
72842e 72842e
72842e
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
73842c 73842c
73842c