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