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