12,71,126
#
in steps
000000 000000
000000
007f7f 007f7f
007f7f
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
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00ff7f
06637e 06637e
06637e
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00ffff
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7f007f
09557e 09557e
09557e
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7f7f7f 7f7f7f
7f7f7f
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0c477e
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7fff7f 7fff7f
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7fffff 7fffff
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ff7fff ff7fff
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151d7d 151d7d
151d7d
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
18107d 18107d
18107d