10	real
5	6	1
10	1	1
6	1	-1
1	10	1
4	7	1
6	5	1
7	5	-1
3	8	1
9	2	1
8	2	-1
2	9	1
8	3	1
7	3	-1
8	4	1
7	4	1
0	0	0.0