7,0,12
#
in steps
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0f000b 0f000b
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00007f 00007f
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0000ff
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007f7f 007f7f
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0b000b 0b000b
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01000c
ffff00 ffff00
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ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
00000d 00000d
00000d