Please help me solve this problem, just started c++ and I am lost, this my 1st computer class, please help

Write an interactive program that prompts the user for two integers (X and Y) and a value Option) indicating an option. Depending on the value of the option, the program will perform different operations.

Value of Option Operations

1 X + Y

2 X - Y

3 X * Y

4 X / Y

Program requirements:

- The program must at least contain four (4) functions where each does one of the above operations.

- The program must be fully documented.