by steps
000000 000000
000000
b7e570 b7e570
b7e570
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
a0c871 a0c871
a0c871
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
89ab73 89ab73
89ab73
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f 7f007f
7f007f
728f75 728f75
728f75
7f00ff 7f00ff
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7f7f00
7f7f7f 7f7f7f
7f7f7f
5b7277 5b7277
5b7277
7f7fff 7f7fff
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7fff7f
7fffff 7fffff
7fffff
445579 445579
445579
ff0000 ff0000
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ff00ff
2d397b 2d397b
2d397b
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
161c7d 161c7d
161c7d
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff