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