by steps
000000 000000
000000
668b2e 668b2e
668b2e
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0000ff
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6a8b2a
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00ff7f
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6e8c27
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728c24 728c24
728c24
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778d21
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7f8e1a 7f8e1a
7f8e1a
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ff7f7f
ff7fff ff7fff
ff7fff
838e17 838e17
838e17
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ffffff ffffff
ffffff
888f14 888f14
888f14