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