Add a score variable and increase score by 1 when the sum is correct
Above all the other code we are going to create a variable called score and put a 0 (zero) into it.
Make sure this line of code starts at the same distance from the right margin as the print("correct") line.
Include it at the end of the code. Make sure it is not indented so the user gets the score report
whether they have got the sum correct or not.
Is the score increased when you get the sum correct?