8 8
   0   2   3   4   6  55   0 -99
   0 -11   0 -11   7   0   0   0
   0 -11   0 -11   0   0 -11   0
   0   0   2   0 -11   0 -11   0
   0 -11 -11   0 -11   0 -11   0
   0 -11   0   0 -11   0 -11   0
   0 -11 -11   0 -11   0 -11   0
   0   0  44   2   4   0   0   0