Write a C++ program that can be used as a math tutor for a young student. The program should display two random numbers to be added or subtracted, such as

247

+ 129

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or

56

- 867

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The program should choose randomly whether the problem is addition or subtraction. The program should wait for the student to enter the answer. If the answer is correct, a message of congratulations should be printed. If the answer is incorrect, a message should be printed showing the correct answer. Make sure the numeric terms are right-aligned, even if they have different numbers of digits