11
9 1
2 6

10 6
6 7
5 7
8 6
9 3
5 9
2 8

4 4
0 3
0 2
3 0
0 1

2 2
1 0
0 1

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

5 9
4 1
1 2
0 3
4 2
3 0
0 2
2 1
2 0
2 4

9 4
0 6
0 8
8 6
0 3

4 8
0 3
3 2
3 0
1 3
2 0
0 2
0 1
1 0

7 5
4 0
0 2
6 5
3 6
6 3

6 2
4 1
0 4

2 2
0 1
1 0