1
8
0 0 100 -100 -100
0 0 50 -10 -10
0 0 10 -100 500
0 0 1 100 100
1000 1000 100 -1 1
1000 1000 50 -1 1
1000 1000 10 -1 1
1000 1000 1 -1 1