by steps
000000 000000
000000
c12263 c12263
c12263
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00007f
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0000ff
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be235c
007fff 007fff
007fff
00ff00 00ff00
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00ff7f
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bc2556
00ffff 00ffff
00ffff
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7f007f
b9264f b9264f
b9264f
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b72849 b72849
b72849
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7fffff 7fffff
7fffff
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b42943
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b22b3c
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ff7f7f
ff7fff ff7fff
ff7fff
af2c36 af2c36
af2c36
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
ad2e30 ad2e30
ad2e30