by steps
000000 000000
000000
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ca798a
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00007f
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0000ff
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c7788f
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007fff
00ff00 00ff00
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00ff7f 00ff7f
00ff7f
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c57895
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f
c3789b c3789b
c3789b
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c178a1 c178a1
c178a1
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bf78a6 bf78a6
bf78a6
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bd78ac
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ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
bb78b2 bb78b2
bb78b2
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
b978b8 b978b8
b978b8