15,39,42
#
in steps
000000 000000
000000
1f2124 1f2124
1f2124
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
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1b2225 1b2225
1b2225
007fff 007fff
007fff
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00ff7f 00ff7f
00ff7f
172427 172427
172427
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f 7f007f
7f007f
132528 132528
132528
7f00ff 7f00ff
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0f272a
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7fffff 7fffff
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0b282b 0b282b
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ff7fff ff7fff
ff7fff
032b2e 032b2e
032b2e
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
002d30 002d30
002d30