by steps
000000 000000
000000
75a5b7 75a5b7
75a5b7
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00007f
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0000ff
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007f00
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749eb1
007fff 007fff
007fff
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00ff7f
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00ffff 00ffff
00ffff
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7390a6
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728aa1
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71839c 71839c
71839c
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717c96
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ff7f7f
ff7fff ff7fff
ff7fff
707591 707591
707591
ffff00 ffff00
ffff00
ffff7f ffff7f
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ffffff ffffff
ffffff
706f8c 706f8c
706f8c