18,13,236
#
in steps
000000 000000
000000
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0000ff
00007f 00007f
00007f
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007f00
007f7f 007f7f
007f7f
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7f7f7f
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120dec
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1710e7
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1b14e2
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ff7fff
2017dd 2017dd
2017dd
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
251bd9 251bd9
251bd9