by steps
000000 000000
000000
6e638b 6e638b
6e638b
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0000ff
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707699
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007fff
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728aa8 728aa8
728aa8
00ffff 00ffff
00ffff
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76b1c5
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78c4d3
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ff7fff
7cebf0 7cebf0
7cebf0
ffff00 ffff00
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ffff7f
ffffff ffffff
ffffff