by steps
000000 000000
000000
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f209e4
00007f 00007f
00007f
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0000ff
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007f7f
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e710cc
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
dc18b5 dc18b5
dc18b5
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f
d2209d d2209d
d2209d
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c72886 c72886
c72886
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7fff7f
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bc306e bc306e
bc306e
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b23857
ff7f00 ff7f00
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ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
a7403f a7403f
a7403f
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
9d4828 9d4828
9d4828