10
8
6 5
6 -4
5 3
-2 1
7 3
-7 1
-8 2
-1 -5
5
-1 4
4 0
2 5
-4 7
2 5
4
-4 8
0 5
2 3
-2 4
9
-1 -1
-8 -6
-9 -9
-3 -1
-4 7
-8 -7
-9 -8
-6 -6
4 -1
4
4 2
-9 -7
-5 -7
2 -8
8
7 1
5 0
6 1
7 2
7 1
3 2
4 1
5 1
4
0 9
7 5
8 6
1 7
6
2 6
0 -8
-6 -8
-4 -3
1 -4
-1 2
4
-1 -1
-8 -8
3 2
-7 -7
7
-7 0
-9 -6
-4 4
6 -7
-6 7
-1 5
-5 3