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xxxxxxm      xxxxx
xxxx         rrxxx
xxx          rrrxx
xxx    h   m rrrxx
xxr        h     x
xxrr  m          x
xxrr      p      x
xxr    rrrrrr    x
xx     rrrrrr    x
xx      rrrrr  h x
xx       rrr     x
xxxrrr          xx
xxxrrr          xx
xxxxrr         xxx
xxxxxx       xxxxx
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