14
3 1 4
3 1 8
2 2 2 6
4 1 3
15 1 7
13 1 5
9 0 14
3000 5 9 10 11 12 14
7000 0 12000
7000 0 18000
12000 0 25000
6000 1 13
3000 0 13000
11000 0 20000