15
A 25
B 11
C 33
D 9
E 27
F 58
G 11
H 22
I 45
J 88
K 44
L 15
M 59
N 65
O 31
22
A B 5
A D 6
B C 6
B E 4
C E 5
C F 4
D G 3
D H 4
E I 5
E J 2
F J 2
F K 4
G H 4
G L 3
H I 4
H L 3
H M 4
I N 2
K O 4
M N 2
N J 3
N O 5