Test:
10
2 3 2 3 6
0 1 1
0 2 4 10
0 3 5 7 9
0 1 3
0 1 3
0 1 8
0 1 7
1 1 7
2 1 5

Answer:
unknown 2
2 2
2 2
2 2
2 2
2 2
unknown unknown
unknown unknown
2 1
2 2