21,20,187
#
in steps
000000 000000
000000
1c1bc0 1c1bc0
1c1bc0
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
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1a19be 1a19be
1a19be
007fff 007fff
007fff
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00ff00
00ff7f 00ff7f
00ff7f
1817bd 1817bd
1817bd
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
1615bc 1615bc
1615bc
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1514bb 1514bb
1514bb
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7f7fff
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7fffff 7fffff
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1312ba 1312ba
1312ba
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1110b9 1110b9
1110b9
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ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
0f0eb8 0f0eb8
0f0eb8
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
0e0db7 0e0db7
0e0db7