a 1
b 2
c 1
d 0
e 1
f 2
g 2
h 1
i 1
j 0
k 1
l 1
m 4
n 2
o 3
p 1
q 3
r 1
s 2
t 3
u 0
v 1
w 4
x 0
y 1
z 0