Task

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Yeshudas sir has given an assignment, to generate all unique and different strings that can be created using their characters and symbols. ### Input - Input the string, each character is between a–z. ### Output - First print an integer $F$: the number of strings. - Then print F lines: the strings in alphabetical order. ### Constraints - $1 \leq n \leq 10$ - where n is the length of the input s

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solution.cppC++17

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