U
U
R
U
A
U
A
R
F
F
A
A
A
F
D
F
R
R
R
U
U
R
D
F
F
F
A
D
U
D
R
F
R
R
D
F
R
D
R
R
D
D
A
A
F
U
U
U
U
U
A
D
A
D
A
F
D
R
U
F
F
A
R
A
U
U
F
A
D
F
A
D
D
R
D