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