Flight timings

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# Flight to the Airport Chef has a flight scheduled at **X** hours (in 24-hour format). It takes him **Y** hours to travel from his house to the airport. Chef wants to arrive at the airport **exactly 2 hours before** his flight departure time. Determine the time at which Chef should leave his house. It is guaranteed that the required departure time is non-negative. ## Function Declaration ##

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solution.cppC++17

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