15,4,61
#
in steps
000000 000000
000000
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
03010f 03010f
03010f
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007fff
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00ff00
00ff7f 00ff7f
00ff7f
07021e 07021e
07021e
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
0b032e 0b032e
0b032e
7f00ff 7f00ff
7f00ff
7f7f00 7f7f00
7f7f00
7f7f7f 7f7f7f
7f7f7f
0f043d 0f043d
0f043d
7f7fff 7f7fff
7f7fff
7fff00 7fff00
7fff00
7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
13054c 13054c
13054c
ff0000 ff0000
ff0000
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ff007f
ff00ff ff00ff
ff00ff
17065c 17065c
17065c
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
1b076b 1b076b
1b076b
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
1f097b 1f097b
1f097b