제출 #139761

7
20 29
8 12
8 9
0 4
0 10
0 1
5 8

4

3

8
21 27
21 31
23 31
25 34
25 33
4 14
15 21
23 25

6

5

10
0 1
5 13
2 10
2 6
6 13
0 5
5 12
0 10
5 13
6 9

8

7