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1 1
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5 2
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3 1
0 1
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1 1
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-2 0.142857
7 7
-1 1
1 1
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1 2
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0 0.5
-2 0.5
5 2
-1 1
-2 1
3 1
0 1
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1 1
-1 1
1 1
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5 1
-1 1
1 1
-1 1
1 1
-1 1
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-2 1
