21,7,0
#
in steps
000000 000000
000000
1d0600 1d0600
1d0600
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
1b0600 1b0600
1b0600
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
190600 190600
190600
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
170600 170600
170600
7f00ff 7f00ff
7f00ff
7f7f00 7f7f00
7f7f00
7f7f7f 7f7f7f
7f7f7f
150700 150700
150700
7f7fff 7f7fff
7f7fff
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7fff7f 7fff7f
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7fffff 7fffff
7fffff
130700 130700
130700
ff0000 ff0000
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ff007f ff007f
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110700 110700
110700
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
0f0700 0f0700
0f0700
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
0d0800 0d0800
0d0800