217,223,243
#
in steps
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000000
ffffff ffffff
ffffff
00007f 00007f
00007f
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0000ff
007f00 007f00
007f00
007f7f 007f7f
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00ff7f
eceff9 eceff9
eceff9
00ffff 00ffff
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e2e7f6
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cfd7f0 cfd7f0
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c6cfed c6cfed
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ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
bcc7ea bcc7ea
bcc7ea
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
b3bfe7 b3bfe7
b3bfe7