20,18,12
#
in steps
000000 000000
000000
0f0707 0f0707
0f0707
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
100908 100908
100908
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
110c09 110c09
110c09
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
120f0b 120f0b
120f0b
7f00ff 7f00ff
7f00ff
7f7f00 7f7f00
7f7f00
7f7f7f 7f7f7f
7f7f7f
14120c 14120c
14120c
7f7fff 7f7fff
7f7fff
7fff00 7fff00
7fff00
7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
15150d 15150d
15150d
ff0000 ff0000
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16180f 16180f
16180f
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ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
171b10 171b10
171b10
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
191e12 191e12
191e12