138,4,7
#
in steps
000000 000000
000000
ff0000 ff0000
ff0000
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
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e10101
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
c40203 c40203
c40203
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f 7f007f
7f007f
a70305 a70305
a70305
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7f00ff
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7f7f00
7f7f7f 7f7f7f
7f7f7f
8a0407 8a0407
8a0407
7f7fff 7f7fff
7f7fff
7fff00 7fff00
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7fff7f 7fff7f
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7fffff 7fffff
7fffff
6d0509 6d0509
6d0509
ff007f ff007f
ff007f
ff00ff ff00ff
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50060b 50060b
50060b
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
33070d 33070d
33070d
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
16080f 16080f
16080f