23
9 4 16 3 14 8
15 5 15 4 17 6 12
18 0 0
3 0 8
10 0 0
3 0 0
14 1 18
15 4 2 9 11 7
1 2 13 10
6 0 0
15 0 0
9 1 5
18 0 0
19 0 2
5 0 0
13 0 10
2 0 0
400 3 19 22 23
100 0 800
400 0 1100
300 0 2300
800 0 1100
1000 2 20 21