by steps
000000 000000
000000
d72861 d72861
d72861
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
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d52b63
007fff 007fff
007fff
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00ff7f
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d42e65
00ffff 00ffff
00ffff
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d23168
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d1356a d1356a
d1356a
7f7fff 7f7fff
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7fffff
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d0386c
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ce3b6f
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ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
cd3e71 cd3e71
cd3e71
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
cc4274 cc4274
cc4274