1       2       4      17
       2       1       3       8
       3       2       4       9
       4       1       3      24
       5       6       8      18
       6       5       7      19
       7       6       8      13
       8       2       5       7
       9       3      10      12
      10       9      11      16
      11      10      12      22
      12       9      11      23
      13       7      14      16
      14      13      15      20
      15      14      16      21
      16      10      13      15
      17       1       0       0
      18       5       0       0
      19       6       0       0
      20      14       0       0
      21      15       0       0
      22      11       0       0
      23      12       0       0
      24       4       0       0