input:

20000
2
2 1
10
6 10 2 7 9 3 8 4 1 5
9
3 6 4 5 8 9 2 7 1
7
3 7 6 4 1 5 2
7
7 2 3 6 5 1 4
5
4 1 3 2 5
9
6 7 5 3 8 1 9 2 4
3
1 2 3
8
7 2 4 6 1 8 3 5
7
4 2 6 3 1 7 5
8
1 7 3 4 2 5 6 8
2
1 2
10
10 2 3 8 6 9 1 4 7 5
4
3 2 1 4
9
7 5 3 4 1 2 9 6 8
7
2 4 5 1 6 7 3
10
3 1 10 4 9 5 6 8 2 7
5
1 2 5 3 4
6
2 6 5 ...

output:

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

result:

wrong answer 6th lines differ - expected: '5', found: '4'