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