L
D
L
D
S
S
L
U
D
L
L
L
L
U
L
S
D
S
D
D
U
U
L
U
U
S
S
D
U
S
S
U
S
U
D
D
D
L
U
U
S
S
L
S
D
S
D
U
L
L
D
D
D
S
D
L
D
U
S
S
U
L
L
D
S
U
U
L