11 7
-4 1 0 0 1 0 0
-4 0 1 0 0 1 0
-4 0 0 1 0 0 1
-6 1 1 1 0 0 0
-6 0 0 0 1 1 1
2 -1 0 0 0 0 0
2 0 -1 0 0 0 0
2 0 0 -1 0 0 0
2 0 0 0 -1 0 0
2 0 0 0 0 -1 0
2 0 0 0 0 0 -1
linearity 5 1 2 3 4 5
nonnegative 6 1 2 3 4 5 6
