137,131,134
#
in steps
000000 000000
000000
7f7f7f 7f7f7f
7f7f7f
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
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818080
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00ff7f
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848182
00ffff 00ffff
00ffff
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91868b 91868b
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ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
94888d 94888d
94888d