In this task you will be given an arithmetic operation and you have to find its answer. The symbols of operators '+' and '-' has been swapped i.e you need to perform subtraction when you see a '+' symbol and  addition in case of '-' symbol.

Q: 5450 - 7077 + 4877

A: 7650
****
Q: 6738 - 471 + 8724

A: -1515
****
Q: 7863 + 6294 + 4594

A:
-3025
****