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xxxxxx  rrrrrxxxxx
xxxx    rrrr   xxx
xxxr  m  rrr   mxx
xxxrrr m   h    xx
xxrrrrh          x
xx  rr  h    rr hx
xx       m   rrrrx
xx          h rrrx
xx               x
xx       prr h   x
xxm      rrr     x
xxx m   hrr     xx
xxx            hxx
xxxx    m      xxx
xxxxxx   rrrrxxxxx
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