V
C
V
B
V
V
B
R
V
B
L
L
V
B
R
L
C
B
C
R
R
L
L
V
R
C
V
V
R
C
R
C
B
R
C
B
L
B
L
R
R
V
V
B
L
L
B
R
C
B
L
C
C
B
R
C
L
V
V
B
C
R
V
L
B
R
C
C
V
R
B
L
L
L
C