5
0 0 2
6 0 4
0 10 8
2 2 9
2 2 10
2 2 9
100 100 10
100 100 9
100 100 8
-50 -50 10
-50 -50 9
-50 -50 8
-999 -999 10
-999 -999 9
999 999 8