by steps
000000 000000
000000
c16d8a c16d8a
c16d8a
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00007f
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0000ff
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c85f88
007fff 007fff
007fff
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00ff7f
d05187 d05187
d05187
00ffff 00ffff
00ffff
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d84485
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7f7f7f
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e72883 e72883
e72883
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ef1b81
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ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
f70d80 f70d80
f70d80
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff