xxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxx
xxxxxx       xxxxx
xxxxr      m   xxx
xxxr      h   m xx
xxx  m          xx
xx       h  m    x
xx        hh     x
xx     hmrrr     x
xx     prrrr     x
xx      rrrr     x
xx   m hrrrr     x
xx  h    rrr     x
xxxrrr    rr   rxx
xxxrrr    m mhrrxx
xxxxrr        rxxx
xxxxxx       xxxxx
xxxxxxxxxxxxxxxxxx
