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