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xxxxxxx   h    rxxxxxx
xxxxxxr         rxxxxx
xxxxrrrr         rrxxx
xxxxrrrrr         rxxx
xxx  rrrr    h      xx
xx  hrrrr           mx
xx   rrr            mx
xx  rrr    rrrrrr    x
xx  rrrm   rrrrrrr   x
xx  rrr     rrrrrrr  x
xx   rrr  p      rrrrx
xx    rrr         rrrx
xx     rrr        rrrx
xx      rrrr      rrrx
xxx      rrr     rrrxx
xxxx             rrxxx
xxxx             rrxxx
xxxxxx           xxxxx
xxxxxxx         xxxxxx
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