9
A
B
C
D
E
F
G
H
I
0 5 0 0 0 0 9 18 1
5 0 7 0 0 0 0 0 0
0 7 0 8 11 0 0 0 6
0 0 8 0 20 0 0 0 0
0 0 11 20 0 4 0 0 2
0 0 0 0 4 0 1 0 0
9 0 0 0 0 1 0 2 3
18 0 0 0 0 0 2 0 0
1 0 6 0 2 0 3 0 0
