by steps
000000 000000
000000
a79b37 a79b37
a79b37
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0000ff
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007fff
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00ff7f
a19740 a19740
a19740
00ffff 00ffff
00ffff
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99914e 99914e
99914e
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978f52 978f52
978f52
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ff7f7f ff7f7f
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ff7fff ff7fff
ff7fff
948d57 948d57
948d57
ffff00 ffff00
ffff00
ffff7f ffff7f
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ffffff ffffff
ffffff
928c5c 928c5c
928c5c