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