64,6,126
#
in steps
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000000
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00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
10017e 10017e
10017e
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00ff00
00ff7f 00ff7f
00ff7f
20037e 20037e
20037e
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30047e 30047e
30047e
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7f7f7f
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50087d 50087d
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700b7d 700b7d
700b7d
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
810d7d 810d7d
810d7d