by steps
000000 000000
000000
86f728 86f728
86f728
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00007f
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0000ff
007f00 007f00
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007f7f 007f7f
007f7f
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89f437
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007fff
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00ff7f
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8cf146
00ffff 00ffff
00ffff
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7f007f
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8fee55
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7f7f7f
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92eb64
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7fffff
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95e873
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98e582
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ff7f7f
ff7fff ff7fff
ff7fff
9be291 9be291
9be291
ffff00 ffff00
ffff00
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ffff7f
ffffff ffffff
ffffff
9edfa0 9edfa0
9edfa0