5 0.5
0 1
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0 1
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0 1
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0 1
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0 1
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0 1
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5 1
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-7 1.5
0 1
2 1
2 1
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-2 0.333333
0 1
5 1
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0 1
0 1
0 1
1 1
0 1
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-9 1
5 1
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5 0.5
0 1
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