by steps
000000 000000
000000
6e9457 6e9457
6e9457
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0000ff
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6e9358 6e9358
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6f925a 6f925a
6f925a
00ffff 00ffff
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718f60
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728e61 728e61
728e61
ffff00 ffff00
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ffffff ffffff
ffffff
738e63 738e63
738e63