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