21,13,121
#
in steps
000000 000000
000000
00007f 00007f
00007f
0000ff 0000ff
0000ff
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007f00
007f7f 007f7f
007f7f
05037d 05037d
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00ff7f
0a067c 0a067c
0a067c
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0f0a7a
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150d79
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1a1077 1a1077
1a1077
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ff7fff ff7fff
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241774 241774
241774
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
2a1b73 2a1b73
2a1b73