0 6

-1

9 8
 0 0 0 1 1 0 0 2
 1 2 1 0 0 1 0 0
 1 0 1 0 -1 0 0 -1
 1 -2 -1 0 0 0 0 -1
 1 7 3 0 0 0 0 -1
 1 -6 -4 0 1 0 3 1
 1 -7 -3 0 0 1 6 4
 1 0 0 0 0 0 1 0
 1 0 0 0 0 0 0 1

Urs_parms
Urs_unknowns