B
A
R
R
L
A
A
B
R
R
L
A
B
P
B
P
L
P
R
P
R
P
P
A
B
P
L
R
L
P
P
A
R
A
L
R
B
A
L
L
B
P
B
B
A
L
L
A
P
B