3
3
1 1
2 1 2 2
3 7
5
1 1
2 1 2 3
1 1
2 1 2 3
3 7
5
1 1
2 1 2 3
1 1
2 1 2 3
3 1

0
2 1 2
5
0
9 0 4
0
3 1 2
3
0
3 1 1
0
3 1 2
0