21,18,90
#
in steps
000000 000000
000000
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00007f
0000ff 0000ff
0000ff
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007f00
007f7f 007f7f
007f7f
050416 050416
050416
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00ff00
00ff7f 00ff7f
00ff7f
0a092d 0a092d
0a092d
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7f007f 7f007f
7f007f
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100d43
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7f7f7f 7f7f7f
7f7f7f
15125a 15125a
15125a
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7fff7f 7fff7f
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7fffff 7fffff
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1a1671 1a1671
1a1671
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201b87 201b87
201b87
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251f9e 251f9e
251f9e
ffff00 ffff00
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ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
2b24b5 2b24b5
2b24b5