3,7,189
#
in steps
000000 000000
000000
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
00018e 00018e
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00ff00
00ff7f 00ff7f
00ff7f
01039e 01039e
01039e
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00ffff
7f0000 7f0000
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7f007f 7f007f
7f007f
0205ad 0205ad
0205ad
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7f7f00
7f7f7f 7f7f7f
7f7f7f
0307bd 0307bd
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7f7fff 7f7fff
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7fff7f 7fff7f
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7fffff 7fffff
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0409cc 0409cc
0409cc
ff0000 ff0000
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ff7f7f ff7f7f
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ff7fff ff7fff
ff7fff
060deb 060deb
060deb
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
070ffb 070ffb
070ffb