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