21,68,111
#
in steps
000000 000000
000000
1a3a6d 1a3a6d
1a3a6d
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00007f
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0000ff
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183c6d
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00ff7f
173f6e 173f6e
173f6e
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16416e 16416e
16416e
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124c71 124c71
124c71
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ffff00
ffff7f ffff7f
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ffffff ffffff
ffffff
114f72 114f72
114f72