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nan nan nan nan nan nan nan nan nan nan nan nan nan 24 24 24 24 24 24 24 25 25 25 26 26 26 27 27 27 28 28 28 28 28 28 28 28 28 28 28 28 28 29 29 29 29 29 29 29 29 29 29 28 28 28 28 28 28 28 28 28 28 28 28 29 29 28 28 28 28 28 27 27 27 27 27 27 27 27 27 27 27 27 27 27 27 27 28 28 28 28 28 28 27 27 27 27 27 27 27 27 27 27 27 27 27 27 26 26 25 26 26 27 28 28 28 28 27 27 26 25 24 24 24 24 24 24 25 25 26 26 27 27 28 28 28 28 27 27 26 26 26 26 26 27 27 28 28 29 29 29 29 29 29 29 29 29 29 29 28 28 28 28 28 28 29 29 29 29 29 29 29 29 30 31 32 33 34 35 36 36 36 36 36 36 35 35 34 34 nan 33 33 33 32 32 32 32 32 32 31 31 31 31 31 30 nan 29 28 nan nan nan nan nan nan nan 30 30 nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan nan 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