0 6
-1
12 8
0 0 0 1 0 1 0 -4
1 2 5 0 2 1 0 3
1 0 -1 0 1 0 0 0
1 -2 -5 0 -1 -1 0 0
1 0 3 0 -1 0 2 0
1 3 4 0 0 1 0 5
1 3 5 0 0 1 0 0
1 -3 -5 0 0 -1 1 2
1 0 1 0 0 0 0 -1
1 0 0 0 1 0 1 -2
1 0 0 0 1 0 0 -2
1 0 0 0 0 0 0 1
Urs_parms
Urs_unknowns