9,19,240
#
in steps
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0000ff
00007f 00007f
00007f
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007f7f 007f7f
007f7f
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0f22e4 0f22e4
0f22e4
ffff00 ffff00
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ffff7f ffff7f
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ffffff ffffff
ffffff
1227e1 1227e1
1227e1