100 10
2 0 1 0 0 3 0 0 0 -3 0 0 0 -3 0 2 -2 0 0 -2 0 0 -2 -3 0 0 0 3 0 -2 -1 0 -3 -2 1 0 0 0 0 0 0 1 0 1 0 1 0 -3 0 0 0 0 1 0 -1 0 3 0 0 0 0 -1 -2 0 1 0 1 0 -1 0 2 -1 2 0 0 -2 0 0 1 3 1 0 0 0 0 0 3 0 0 -3 0 0 0 0 -2 2 0 2 0 0
4 1 2 3 6 4 2 6 5 5