7 0 0
6 0 0
x12
0 75 0
8 0 0
3 0 0
4 50 0
0 15 0
15 0 0
x16
1 20 0
x4
0 4 16
x20
x1
10 0 0
x24
0 80 0
2 40 0
0 
0 
x12
