L
C
S
C
R
L
S
B
B
B
S
S
S
C
C
R
B
L
C
L
R
C
R
L
R
C
L
R
C
L
B
L
R
B
R
R
S
L
S
B
L
S
B
B
S
S
C
L
L
C
R
B