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xxxxxxrr     xxxxx
xxxxrm     m   xxx
xxxsss          xx
xxxs        rr  xx
xxssss   f  rr   x
xxs     s   rrr  x
xxs m sss p  rrrrx
xx   sssrr   rrrrx
xx   ssrrrss rrrrx
xx    rrrss  rrrrx
xx   rrrssss rrrrx
xxxrrrr sssss   xx
xxxrrr fsss     xx
xxxxrr   rrr   xxx
xxxxxx   rrrrxxxxx
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