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xxxxxx       xxxxx
xxxx         rrxxx
xxxr   m     rrrxx
xxxrrr        rrxx
xxrrrr           x
xxrrr    p       x
xxrr m           x
xxr              x
xxr s            x
xxr sss          x
xxrrssss s       x
xxxrssssss  ss  xx
xxxr sssssssssssxx
xxxx   ssrrrsssxxx
xxxxxxsssrrrrxxxxx
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