by steps
000000 000000
000000
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a2845c
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0000ff
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a08357
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00ff7f
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9e8353
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7fffff
998246 998246
998246
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978241 978241
978241
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ff7f00
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ff7f7f
ff7fff ff7fff
ff7fff
95823d 95823d
95823d
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
948239 948239
948239