I once went to the USA and a guy asked me,
"What is a+B?"
I could answer him.
What was my answer?
The title is a clue
Note: The title is appropriate, and B is capitalized on purpose.
a is 97 and B is 66, when refered to by their decimal code in the American Standard Code for Information Interchange (ASCII) encoding.
974366, using ASCII codes for a(97), +(43) and B(66)