by steps
000000 000000
000000
6f7096 6f7096
6f7096
00007f 00007f
00007f
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0000ff
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707d87
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007fff
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728a79 728a79
728a79
00ffff 00ffff
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75a55d
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78c041
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ff7f7f
ff7fff ff7fff
ff7fff
79cd33 79cd33
79cd33
ffff00 ffff00
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ffff7f ffff7f
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ffffff ffffff
ffffff
7bdb25 7bdb25
7bdb25