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xxxxxx       xxxxx
xxxx       m   xxx
xxxr            xx
xxx  h          xx
xx               x
xx               x
xx       p       x
xx          h    x
xx               x
xx   rr       h  x
xx   rrr         x
xxx  rrrr       xx
xxx  rrrr       xx
xxxxrrrrr      xxx
xxxxxxrrr    xxxxx
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