by steps
000000 000000
000000
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788308
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00007f
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0000ff
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72870f
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007fff
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00ff7f
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6d8b17
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678f1e 678f1e
678f1e
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ff7f7f
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ff7fff
51a03d 51a03d
51a03d
ffff00 ffff00
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ffffff ffffff
ffffff
4ca545 4ca545
4ca545