by steps
000000 000000
000000
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6be380
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00007f
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0000ff
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007fff
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00ff7f 00ff7f
00ff7f
6ccd74 6ccd74
6ccd74
00ffff 00ffff
00ffff
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7f007f
6dc26e 6dc26e
6dc26e
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6fad62 6fad62
6fad62
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70a25c 70a25c
70a25c
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ff7f00
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ff7f7f
ff7fff ff7fff
ff7fff
719756 719756
719756
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
728d50 728d50
728d50