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xxxxxxrr    rxxxxx
xxxxrrrr f  rrrxxx
xxx  rrrs    rrrxx
xxxm rr ss    rrxx
xxss   sss   srrrx
xxsss  sssrrsssrrx
xxs ss s rrrsss  x
xxs rrrrrrrsss   x
xxs rrrrrrp f    x
xxm rrrrr    rr  x
xx   rrr f m rrrrx
xxx  m  f     rrxx
xxx     m      rxx
xxxxrrr        xxx
xxxxxxrr     xxxxx
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