21,15,181
#
in steps
000000 000000
000000
1912ab 1912ab
1912ab
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
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1811ad
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007fff
00ff00 00ff00
00ff00
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00ff7f
1710b0 1710b0
1710b0
00ffff 00ffff
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1610b2 1610b2
1610b2
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150fb5
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140eb8 140eb8
140eb8
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130eba 130eba
130eba
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ff7fff
120dbd 120dbd
120dbd
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
120dc0 120dc0
120dc0