22,18,181
#
in steps
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000000
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0000ff
00007f 00007f
00007f
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007f00
007f7f 007f7f
007f7f
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0b09da
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1c16a2
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271f7d 271f7d
271f7d
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
2d246b 2d246b
2d246b