20 questions
What is the interval?
8
6
7
4
5
What is the interval?
5
3
8
2
5
What is the interval?
10
8
6
7
1
3
4
2
5
7
2
4
1
5
8
5
6
4
3
8
7
5
3
4
6
2
1
4
3
5
1
3
8
4
4
6
8
3
5
4
8
6
3
2
4
8
5
6
2
3
6
4
5
7
8
5
3
4
1
8
7
9
5
3
7
2
4
5
6
10
8
7
9
6
4
8
7
6
5
6
8
4
6
7
3
4
6
8
5