Absolute Difference

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Given an integer $N$, you need to calculate the absolute difference of its first and last digits. You have to do this task for $T$ testcases. ###Input: - First line will contain $T$, number of testcases. Then the testcases follow. - Each testcase contains of a single line of input, one integer $N$. ###Output: For each testcase, output in a single line answer given by absolute diffe

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solution.cppC++17

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