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