  0   0   6  -1   0
  0  20   0   0 -49
 48  49  -1   0   0
 23  26  35  41  29
 13  -2  15  14  -2
 16  13   9  17  -3
 10   0   0   0   3
 14   9  18   0   0
 19  -3  11   0   0
  0   3
