by steps
000000 000000
000000
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d55fa3
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0000ff
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ca738e
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bf877a
00ffff 00ffff
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b49b65
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aaaf51
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9fc33d 9fc33d
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94d728 94d728
94d728
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ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
89eb14 89eb14
89eb14
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff