c -----------------------------------------------
c Example input file
c -----------------------------------------------
p 5 7 0 1.001 1
n 3 s
n 4 t
a 3 0 -20 20
a 3 1 -14 20
a 3 2 -6 20
a 2 1 3 0
a 0 4 20 -20
a 1 4 14 -20
a 2 4 6 -20
