5
0 2 5
0 1 3
2 4
0 3 5
1 4
4
0 2 3 4
1 3
1 2
0 1
3
0 2
0 1
0
5
0 2 3
1 4
1 5
0 2 5
3 4
8
2 4
0 1 3
2 5
0 1 6
0 3 8
4 7
0 6 8
5 7
9
0 2
1 3
2 4
3 5
4 6
5 7 9
0 6 8
7 9
0 8
0