alpar@1: c sample.max
alpar@1: c
alpar@1: c This is an example of the maximum flow problem data
alpar@1: c in DIMACS format.
alpar@1: c
alpar@1: p max 9 14
alpar@1: c
alpar@1: n 1 s
alpar@1: n 9 t
alpar@1: c
alpar@1: a 1 2 14
alpar@1: a 1 4 23
alpar@1: a 2 3 10
alpar@1: a 2 4  9
alpar@1: a 3 5 12
alpar@1: a 3 8 18
alpar@1: a 4 5 26
alpar@1: a 5 2 11
alpar@1: a 5 6 25
alpar@1: a 5 7  4
alpar@1: a 6 7  7
alpar@1: a 6 8  8
alpar@1: a 7 9 15
alpar@1: a 8 9 20
alpar@1: c
alpar@1: c eof