A
A
N
S
n
N
S
N
n
S
C
A
N
n
S
C
n
S
S
S
C
A
N
S
C
S
C
A
C
A
S
C
C
A
n
A
C
n
S
n
n
S
n
A
A
N
S
N
A
n
C
N
C
n
C
A
n
N
n
N
A
N
n
C
N
N
N
S
A