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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 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 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 23 23 23 22 22 22 23 23 23 23 23 23 23 23 23 23 22 22 22 21 21 21 21 21 21 21 21 21 21 21 21 21 22 22 22 22 23 24 24 25 25 25 26 26 26 27 27 27 27 26 26 26 26 26 26 26 26 26 26 26 26 26 25 25 25 25 26 26 27 27 27 27 27 27 27 27 27 28 28 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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 nan nan nan nan nan 23 23 22 22 22 23 23 23 23 23 23 22 22 22 22 22 22 22 21 21 21 20 20 20 20 20 20 20 20 20 20 21 21 22 22 23 24 25 25 26 26 27 27 27 27 27 27 26 26 26 26 26 26 25 25 25 25 25 25 25 25 25 25 25 25 25 25 26 26 26 26 26 26 26 26 26 26 27 27 27 27 27 27 27 27 27 26 26 25 25 25 26 26 27 27 27 27 27 27 27 28 28 29 29 30 30 31 31 31 31 31 31 31 31 31 32 32 33 33 32 32 32 32 32 32 32 32 32 32 32 33 33 33 32 32 32 32 31 31 31 31 31 31 32 32 32 33 33 33 33 33 34 33 33 33 33 33 33 33 32 32 nan nan nan nan nan nan nan 35 nan nan nan nan nan nan nan 33 33 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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