3    -1     0     0     0     0     0     0     0     0     0
 -1     3    -1     0     0     0     0     0     0     0     0
  0    -1     3    -1     0     0     0     0     0     0     0
  0     0    -1     3    -1     0     0     0     0     0     0
  0     0     0    -1     3    -1     0     0     0     0     0
  0     0     0     0    -1     3    -1     0     0     0     0
  0     0     0     0     0    -1     3    -1     0     0     0
  0     0     0     0     0     0    -1     3    -1     0     0
  0     0     0     0     0     0     0    -1     3    -1     0
  0     0     0     0     0     0     0     0    -1     3     0
 

  1
  1
  1
  1
  1
  1
  1
  1
  1
  1