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: 7409 + 7579 + 4759 + 5088

A: -10017
****
Q: 5299 - 8968 + 5239 + 1119

A: 7909
****
Q: 8502 + 3660 + 7477 - 3948

A:
1313
****