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