0
2
2
3
C
H
H
L
L
N
P
S
T
U
_
_
a
c
f
f
f
g
g
h
h
h
k
k
k
k
k
l
l
l
l
m
m
n
n
n
s
s
s
s
s
s
s
s
t
t
t
t
t
y