7
0: 1 2 -2 1 -3 0
1: 1 1 1 0
2: 2 3 16 1 6 2 8 0
3: 1 1 2 0
4: 1 1 -2 0
5: 1 2 -4 0
6: 3 4 -5 3 5 0 1 2 1 1 2 3 -4 1 2 0