27,7,187
#
in steps
000000 000000
000000
1500bf 1500bf
1500bf
00007f 00007f
00007f
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0000ff
007f00 007f00
007f00
007f7f 007f7f
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00ff7f
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1803bd
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1b07bb
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7fffff 7fffff
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1d09ba
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200db8 200db8
200db8
ffff00 ffff00
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ffff7f ffff7f
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ffffff ffffff
ffffff
220fb7 220fb7
220fb7