Make Square

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Utkarsh has 4 sticks; a1, a2, a3, a4 of length $a, b, c, d$ respectively. He has been given a task to make a square by joining these sticks along the corners. For achieving this he is allowed to perform the following operation any number of times. **Operation:** Select any stick, and length and discard the length from the stick. Refer to the test cases for additional details. Can you help Utkars

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solution.cppC++17

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