by steps
000000 000000
000000
84e728 84e728
84e728
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00007f
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0000ff
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007f7f
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83ca32
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007fff
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00ff7f
82ad3d 82ad3d
82ad3d
00ffff 00ffff
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7fffff
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80565e
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803969 803969
803969
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ff7f7f
ff7fff ff7fff
ff7fff
7f1c74 7f1c74
7f1c74
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff