input:

100
2 2
2 3
2 4
2 5
2 6
2 7
2 8
2 9
2 10
2 11
3 2
3 3
3 4
3 5
3 6
3 7
3 8
3 9
3 10
3 11
4 2
4 3
4 4
4 5
4 6
4 7
4 8
4 9
4 10
4 11
5 2
5 3
5 4
5 5
5 6
5 7
5 8
5 9
5 10
5 11
6 2
6 3
6 4
6 5
6 6
6 7
6 8
6 9
6 10
6 11
7 2
7 3
7 4
7 5
7 6
7 7
7 8
7 9
7 10
7 11
8 2
8 3
8 4
8 5
8 6
8 7
8 8
8 9
8 10
8 11
9 ...

output:

2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
4
3
4
4
4
4
4
4
4
4
4
5
4
5
5
5
5
5
5
5
4
4
6
5
6
6
6
6
6
6
4
5
5
7
6
7
7
7
7
7
8
8
8
6
8
7
8
8
8
8
8
6
8
9
7
9
8
9
9
9
8
6
7
8
10
8
10
9
10
10
8
8
11
8
9
11
9
11
10
11

result:

wrong answer 42nd numbers differ - expected: '5', found: '4'