4
1
1
10
3, 1, 3, 1, 3, 3, 1, 4, 4, 1
2, 1, 3, 3, 4, 4, 1
2, 1, 3, 3, 4, 4, 1
2, 1, 3, 3, 4, 4, 1
2, 1, 3, 3, 4, 4, 1
2, 1, 3, 3, 4, 4, 1
2, 1, 3, 3, 4, 4, 1
2, 1, 3, 3, 4, 4, 1
2, 1, 3, 3, 4, 4, 1
2, 1, 3, 3, 4, 4, 1


solution:
2
1
3
4
1, 2, 3
4
1, 2, 3
4
1, 2, 3
4
1, 2, 3
4
1, 2, 3
4
1, 2, 3
4
1, 2, 3
4
1, 2, 3
4
1, 2, 3
4