제출 #170038

4
2
0 4
3 4

1 0
2 0
0
1 0
2 1
3 2
1

0
1

6
2
0 6
6 1

1 0
2 0
3 0
0
0 1
0 2
0 3
0

0
0

10
2
5 9
10 9

0 0
1 0
2 0
3 0
4 0
5 1
0
0 1
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
1

0
1