by steps
000000 000000
000000
9bc629 9bc629
9bc629
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0000ff
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007fff
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00ff7f
9ac728 9ac728
9ac728
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99c727
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99c827
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99c826
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98c926 98c926
98c926
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ff7fff ff7fff
ff7fff
98c925 98c925
98c925
ffff00 ffff00
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ffffff ffffff
ffffff
98ca25 98ca25
98ca25