by steps
000000 000000
000000
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a07c08
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0000ff
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007fff
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00ff7f
ad7a0b ad7a0b
ad7a0b
00ffff 00ffff
00ffff
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b47a0d b47a0d
b47a0d
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c27811
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c97813 c97813
c97813
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ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
d07715 d07715
d07715
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ffff00
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ffff7f
ffffff ffffff
ffffff
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d77717