0 5

-1

11 8
 0 0 0 0 1 1 0 2
 1 3 -4 -3 0 1 0 -1
 1 0 0 -1 0 0 1 0
 1 0 -1 0 0 0 1 0
 1 -3 4 3 0 -1 1 0
 1 2 -4 -3 0 1 1 0
 1 0 1 0 0 0 0 -1
 1 -2 4 3 0 -1 0 -1
 1 0 0 1 0 0 0 -1
 1 0 0 0 0 0 1 -2
 1 0 0 0 0 0 0 1

Urs_parms
Urs_unknowns