60.0
a b 1.0
b c 2
c d 1.0
a e 2.0
e f 4.0
f d 2.0
a g 4.0
g h 2
h d 2 20.0
e g 5.0
e c 12.0

c d 21.0 20.5 20.9 21.2 19.8 18.7 12.0 12.3 12.5 12.5 12.6 11.7 11.9 11.5
a
d