37,4,123
#
in steps
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000000
1c037c 1c037c
1c037c
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
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1e037b 1e037b
1e037b
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
20037b 20037b
20037b
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
22037b 22037b
22037b
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7f7f7f 7f7f7f
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25047b 25047b
25047b
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7fff7f 7fff7f
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7fffff 7fffff
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27047b 27047b
27047b
ff0000 ff0000
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29047b 29047b
29047b
ff7f00 ff7f00
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ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
2b047b 2b047b
2b047b
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
2e057b 2e057b
2e057b