input:

10000
1 9 7
8 9 1 5 3 7 4 6 2
1 8 2
7 5 1 6 4 2 3 8
1 1 0
1
1 8 3
5 7 8 3 2 1 4 6
1 10 948645336
3 10 1 6 2 8 9 5 7 4
1 1 0
1
1 10 7
5 3 10 8 1 7 4 9 6 2
1 9 6
4 8 5 7 2 6 3 1 9
1 7 1
3 5 1 6 2 7 4
1 6 6
5 3 1 2 4 6
1 1 1
1
1 2 0
1 2
1 1 1
1
1 6 3
5 6 2 4 3 1
1 5 673454194
2 3 1 4 5
1 4 1
1 4 2 3
1 ...

output:

2
6
1
5
10
1
3
3
6
6
1
2
1
3
5
3
1
3
3
3
6
4
9
10
3
6
2
1
3
1
2
5
6
1
3
1
3
9
1
1
4
2
8
4
3
1
5
6
1
4
7
1
6
5
2
2
7
1
2
6
8
7
1
2
6
2
2
1
2
4
4
3
1
2
1
1
2
1
4
7
2
3
1
1
2
3
3
2
4
1
8
2
4
1
2
4
1
4
4
6
9
6
4
4
2
3
6
2
2
6
6
10
7
6
1
3
2
3
8
3
4
4
5
6
2
7
5
5
5
3
3
2
6
4
7
4
7
8
8
1
1
2
5
2
3
10
4
2
...

result:

wrong answer 1st numbers differ - expected: '9', found: '2'