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Description Description Input Output Input Input Output Output Sample Input 5 5 1 2 1 3 2 3 3 4 4 5 Sample Output 5 Sample Input 5 5 1 2 1 3 2 3 3 4 4 ÔĶÁÈ«ÎÄ
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Description Description Input Output Input Input Output Output Sample Input 3 2 2 1 4 2 3 5 1 1 4 2 2 5 1 3 2 1 3 1 2 4 1 3 5 1 1 3 2 2 5 1 2 2 1 2 2 ÔĶÁÈ«ÎÄ