by steps
000000 000000
000000
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af9a6f
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00007f
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0000ff
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a99671
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007fff
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00ff7f
a39373 a39373
a39373
00ffff 00ffff
00ffff
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9d8f75
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7f7f7f
978c77 978c77
978c77
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918979
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ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
85827d 85827d
85827d
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff