7,2,189
#
in steps
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000000
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0f047c
00007f 00007f
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0000ff
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0d038c
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0b039c 0b039c
0b039c
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ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
0100ee 0100ee
0100ee
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff