by steps
000000 000000
000000
9f0ccb 9f0ccb
9f0ccb
00007f 00007f
00007f
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0000ff
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ab1ad1
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007fff
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00ff7f
b728d8 b728d8
b728d8
00ffff 00ffff
00ffff
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ff7fff ff7fff
ff7fff
f370f8 f370f8
f370f8
ffff00 ffff00
ffff00
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ffff7f
ffffff ffffff
ffffff