2 3

3 2

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12 1

2 1

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1 2

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1 2

4 2

1 2

2 1

2 1

2 1

2 1

1 2

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1 2

1 2

2 1

1 2

1 1

1 1

2 1

1 3

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5 4

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3 4

1