STRING
DIRECTED
9
A
B
C
D
E
F
G
H
I
16
A B 3
A C 3
B D 1
B F 3
C G 3
C I 1
D E 4
D F 1
D H 3
E C 1
F H 1
G E 1
H B 1
I E 3
I G 1
I H 4
F G
