Given two strings s and t, they only contain lowercase letters. The string t is randomly rearranged by the string s, and then a letter is added at a random position. Please find the letter added in t - Code World

Given two strings s and t, they only contain lowercase letters. The string t is randomly rearranged by the string s, and then a letter is added at a random position. Please find the letter added in t

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Given two strings s and t, they only contain lowercase letters. The string t is randomly rearranged by the string s, and then a letter is added at a random position. Please find the letter added in t

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