N
N
N
U
U
C
C
N
S
T
C
T
S
S
N
U
T
S
C
T
C
C
C
U
U
U
C
T
N
S
T
N
S
T
N
S
C
U
C
U
C
U
N
U
N
S
U
T
U
T
C
T
S
N
S
N