5
2
10 100
30 100
3
10 100
30 100
40 100
5
1 3
4 3
3 2
5 2
2 2
8
5 6
8 1
9 5
13 5
15 6
16 6
19 7
100 6
4
1 1000000000
1000 1000000000
1000000 1000000000
1000000000 1000000000