3
-3 5
7 9
17 5
4
0 0
0 1
1 1
1 0
4
-10 0
-8 1
8 1
10 0
6
-10 0
-8 1
8 1
10 0
8 -1
-8 -1
5
-10 0
-8 1
8 1
10 0
0 -1
4
-10 0
0 2
10 0
0 1
0