18 lines
84 B
Plaintext
18 lines
84 B
Plaintext
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2
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a b
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6
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0 a 1
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0 b 3
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1 a 3
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1 b 4
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2 a 1
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2 b 4
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3 a 4
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3 b 3
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4 a 4
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4 b 4
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5 a 5
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5 b 5
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1
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4
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