8 8 10000
25 10000
15 10000
15 -9990
-15 -9990
-15 10000
-25 10000
-25 -10000
25 -10000
5 9990
25 9990
25 10000
-25 10000
-25 9990
-5 9990
-5 -10000
5 -10000
