L
L
R
A
L
A
U
2
A
R
2
2
L
2
L
A
2
R
R
R
R
R
L
U
R
A
U
U
A
R
R
R
A
R
L
L
R
U
R
L
R
L
U
2
R
A
L
A
L
R
A
2
R
U
R
U
A
R
R
2
A
A
R
L
U
R
U
2
L
A
R
A