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