by steps
000000 000000
000000
007fff 007fff
007fff
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
1080e2 1080e2
1080e2
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
2081c6 2081c6
2081c6
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f
3182aa 3182aa
3182aa
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7f7f00
7f7f7f 7f7f7f
7f7f7f
41838e 41838e
41838e
7f7fff 7f7fff
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7fff7f
7fffff 7fffff
7fffff
518472 518472
518472
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628556
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ff7f00
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ff7f7f
ff7fff ff7fff
ff7fff
72863a 72863a
72863a
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
83871e 83871e
83871e