15,12,243
#
in steps
000000 000000
000000
0000ff 0000ff
0000ff
00007f 00007f
00007f
007f00 007f00
007f00
007f7f 007f7f
007f7f
0303fc 0303fc
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00ff7f
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0706f9
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7f007f
0b09f6 0b09f6
0b09f6
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0f0cf3
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7fffff 7fffff
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130ff0 130ff0
130ff0
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1712ed 1712ed
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ff7fff ff7fff
ff7fff
1b15ea 1b15ea
1b15ea
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
1f19e7 1f19e7
1f19e7