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