by steps
000000 000000
000000
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8ca1a1
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007fff
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00ff7f
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88b878
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87c464
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83db3c 83db3c
83db3c
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82e728 82e728
82e728
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ff7f7f
ff7fff ff7fff
ff7fff
80f314 80f314
80f314
ffff00 ffff00
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ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff