Flip Characters

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Given a string of alphabets containing some uppercase and some lowercase alphabet. Your task is to flip each alphabet . If alphabet is lowercase alphabet then flip it to the uppercase else vice-versa. Print the modified string. ###Input: The only line of the input is a string. ###Output: Modified string. ###Constraints - $1 \leq |length of string| \leq 1000$ ###Sample Input: AbcDEF

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solution.cppC++17

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