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xxxxx   rrrrr   xxxx
xxxx     rrr     xxx
xxxssss     s     xx
xx s        s      x
xx sssrr   sssh    x
xx   rrrf hs ssss  x
xxm rrr  f rr  ss  x
xx  rr     rr      x
xx  rr   prrr     sx
xx       rrr      sx
xx m     rr  f  sssx
xx          m   sssx
xxx           mss xx
xxxx     rrr     xxx
xxxxx   rrrrr   xxxx
xxxxxx  rrrrrrrxxxxx
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