by steps
000000 000000
000000
1af63a 1af63a
1af63a
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26e732 26e732
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33d82b 33d82b
33d82b
00ffff 00ffff
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4cba1d
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59ab15 59ab15
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659c0e 659c0e
659c0e
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ff7f7f
ff7fff ff7fff
ff7fff
728d07 728d07
728d07
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff