by steps
000000 000000
000000
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ff0000
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00007f
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007f7f
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fa080d
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007fff
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f5101b
00ffff 00ffff
00ffff
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ec2037
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e72844 e72844
e72844
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e33052
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ff7f7f
ff7fff ff7fff
ff7fff
de3860 de3860
de3860
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ffff00
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ffff7f
ffffff ffffff
ffffff
da406e da406e
da406e