4,21,2
#
in steps
000000 000000
000000
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
010500 010500
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007fff
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00ff00
00ff7f 00ff7f
00ff7f
020a01 020a01
020a01
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
030f01 030f01
030f01
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7f7f00
7f7f7f 7f7f7f
7f7f7f
041502 041502
041502
7f7fff 7f7fff
7f7fff
7fff00 7fff00
7fff00
7fff7f 7fff7f
7fff7f
7fffff 7fffff
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051a02 051a02
051a02
ff0000 ff0000
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ff007f ff007f
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061f03 061f03
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ff7f00 ff7f00
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ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
072403 072403
072403
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
082a04 082a04
082a04