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