by steps
000000 000000
000000
c72886 c72886
c72886
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
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c62886
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
c52986 c52986
c52986
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f
c42a86 c42a86
c42a86
7f00ff 7f00ff
7f00ff
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7f7f7f
c42b87 c42b87
c42b87
7f7fff 7f7fff
7f7fff
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7fff00
7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
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c32b87
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c22c87
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
c12d87 c12d87
c12d87
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
c12e88 c12e88
c12e88