by steps
000000 000000
000000
70702a 70702a
70702a
00007f 00007f
00007f
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0000ff
007f00 007f00
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007f7f 007f7f
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717d31
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007fff
00ff00 00ff00
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00ff7f
728a39 728a39
728a39
00ffff 00ffff
00ffff
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7f007f
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749841
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75a549
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7fffff
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76b251
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78c059 78c059
78c059
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ff7f7f
ff7fff ff7fff
ff7fff
79cd61 79cd61
79cd61
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
7bdb69 7bdb69
7bdb69