20 lines
105 B
C++
20 lines
105 B
C++
6
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1 1 3 3
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0 0 2 3
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0 5 7 0
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0 0 1 4
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0 2 2 2
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2 3 0 9
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2 3 1 4
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0 0 2 2
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2 3 2 4
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0 2 2 0
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3 2 3 4
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2 2 0 0
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