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