2021/finals/ssssss_sample_input.txt

5
3
0 3
0 2
0 1
2
1 3
1 2
3
11 19
10 20
0 10
4
0 2
2 3
4 5
2 3
12
17 39
41 52
25 27
0 11
57 64
8 32
36 43
58 61
12 20
43 54
52 55
11 22