131,0,127
#
in steps
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000000
7f007f 7f007f
7f007f
00007f 00007f
00007f
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0000ff
007f00 007f00
007f00
007f7f 007f7f
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00ffff 00ffff
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7f7f7f 7f7f7f
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84007f 84007f
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86007f 86007f
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ffff7f
ffffff ffffff
ffffff
88007f 88007f
88007f