c Grid example: N = 15 M = 90 MAXCAP = 10 MAXCOST = 10 SEED = 1234
c X=5 Y=3 XDEG=2 YDEG=2
p min 15 90
n        1         47
n       15        -47
a        1        2          0          5          4 
a        1        3          0          4          0 
a        1        6          0          9          0 
a        1       11          0          4          0 
a        2        3          0          6          5 
a        2        4          0          3          9 
a        2        7          0          6          6 
a        2       12          0          5          3 
a        3        4          0          4          9 
a        3        5          0          3          0 
a        3        8          0          6          3 
a        3       13          0          8          6 
a        4        5          0          8          5 
a        4       15          0          4          8 
a        4        9          0          6          1 
a        4       14          0          2          6 
a        5       15          0          8          1 
a        5       15          0          6          0 
a        1        2          0          6          0 
a        5       10          0          3          4 
a        5       15          0          3          4 
a        6        7          0          4          2 
a        6        8          0          1          4 
a        6       11          0          9          6 
a        6        1          0          3          0 
a        7        8          0          7          4 
a        7        9          0          3          3 
a        7       12          0          7          4 
a        7        2          0          3          7 
a        8        9          0          2          7 
a        8       10          0          2          9 
a        8       13          0          8          0 
a        8        3          0          6          7 
a        9       10          0          7          8 
a        9       15          0          4          0 
a        1        6          0          4          0 
a        9       14          0          3          0 
a        9        4          0          4          1 
a       10       15          0          5          7 
a        1        6          0          5          7 
a       10       15          0          3          4 
a        1        7          0          3          4 
a       10       15          0          7          0 
a       10        5          0          7          4 
a       11       12          0          5          5 
a       11       13          0          2          9 
a       11        1          0          6          4 
a       11        6          0          6          6 
a       12       13          0          9          7 
a       12       14          0          2          5 
a       12        2          0          8          4 
a       12        7          0          2          6 
a       13       14          0          3          1 
a       13       15          0          2          0 
a       13        3          0          7          3 
a       13        8          0          6          1 
a       14       15          0          9          5 
a       14       15          0          2          4 
a        1       11          0          2          4 
a       14        4          0          7          5 
a       14        9          0          8          3 
a        1       11          0          6          1 
a        1       12          0          2          9 
a       15        5          0          2          1 
a       15       10          0          1          4 
a       13        5          0          3          6 
a        7        3          0          2          4 
a        1        4          0          4          6 
a       10        3          0          5          7 
a        7        1          0          3          0 
a        5       12          0          1          1 
a       11       13          0          4          2 
a        6        4          0          2          0 
a        3        4          0          2          1 
a       11       12          0          2          7 
a        9        3          0          6          4 
a        1        6          0         47          3 
a        6       11          0         47          3 
a       11        2          0         47          3 
a        2        7          0         47          3 
a        7       12          0         47          3 
a       12        3          0         47          3 
a        3        8          0         47          3 
a        8       13          0         47          3 
a       13        4          0         47          3 
a        4        9          0         47          3 
a        9       14          0         47          3 
a       14        5          0         47          3 
a        5       10          0         47          3 
a       10       15          0         47          3 
