6     4    11    10    25    20     8     1     0     0     0     0
     1    -1    -1    -1     2     5     0     4     0     0     2     0
     2     6     1     2     0     1     3     6     2     0     1     0
     4     1     0     3     2     1     3     1     4     1     0     0
     2    -1     0     0     1     0     1     2     3     2     2     3
     1     0     0     4     4     6     7    10    14     5     0     4
     2     0     4    14     7    33    38    91   123    43    10     9
    10     6    15    30   180   528   528   156   122    63    20     2
     2     3     9     5    10    10    13    13     4     6     7     3
     2     0     3     3    11    13    13    18    -1     0     1     0
     1     3     0     3     0     3    12     3     0     4     0     1
     0     1     1     1     2     4     9    10     5     1     0     1
     1     0     0     1     2     2    15     5     2     2     2     1
     4     0     1     0     1     1     5     4     4     2     1     2