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xxxxxx         xxxxx
xxxxx          rxxxx
xxxxr     m  rrrrxxx
xxxrr       rrrrrrxx
xxrrrr      rrrrr  x
xx  rr      rrrrr  x
xx  h        rrr   x
xx                 x
xx      h   p      x
xx           h     x
xx   h             x
xx              rrrx
xx m            rrrx
xxxr    f   h   rrxx
xxxx         m  rxxx
xxxxx   rr      xxxx
xxxxxx  rr     xxxxx
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