21,28,2
#
in steps
000000 000000
000000
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
050700 050700
050700
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007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
0a0e01 0a0e01
0a0e01
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
0f1501 0f1501
0f1501
7f00ff 7f00ff
7f00ff
7f7f00 7f7f00
7f7f00
7f7f7f 7f7f7f
7f7f7f
151c02 151c02
151c02
7f7fff 7f7fff
7f7fff
7fff00 7fff00
7fff00
7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
1a2303 1a2303
1a2303
ff0000 ff0000
ff0000
ff007f ff007f
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ff00ff ff00ff
ff00ff
1f2a03 1f2a03
1f2a03
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
243104 243104
243104
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
2a3805 2a3805
2a3805