137,21,221
#
in steps
000000 000000
000000
821adf 821adf
821adf
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
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8318de
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00ff00
00ff7f 00ff7f
00ff7f
8517de 8517de
8517de
00ffff 00ffff
00ffff
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ff7fff ff7fff
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8e12dc 8e12dc
8e12dc
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
9011dc 9011dc
9011dc