xxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxx
xxxxxx  ss  fxxxxx
xxxxss   smm   xxx
xxxr          ssxx
xxxrrr        ssxx
xx  rr         m x
xx hrr  hrr  f hfx
xxm      rrr   m x
xx   fhh  rrr    x
xx        prr    x
xx   rr    rr    x
xx   rrr   hh    x
xxx   rr        xx
xxx             xx
xxxx         rrxxx
xxxxxx       xxxxx
xxxxxxxxxxxxxxxxxx
