input:

4
4
0 1
2 3
4 5
3 5
5
0 70
0 10
20 30
40 50
60 70
8
-1 7
-2 -1
-9 -7
-8 9
-9 -7
-2 4
-7 4
3 9
5
0 1
0 2
2 3
3 5
4 5

output:

1
3 0 2 4 
4 3 0 20 40 60 
2
3 -9 -1 8 
2 2 0 3 4 

result:

wrong answer test 2: segment [60, 70] does not contain any points