by steps
000000 000000
000000
9292c6 9292c6
9292c6
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00007f
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0000ff
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007f7f 007f7f
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007fff
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00ff7f
728dd2 728dd2
728dd2
00ffff 00ffff
00ffff
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7f007f
628bd8 628bd8
628bd8
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5289de
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4287e4
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3285ea 3285ea
3285ea
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ff7fff ff7fff
ff7fff
2283f0 2283f0
2283f0
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
1281f7 1281f7
1281f7