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: 509 + 4840 + 5618 + 9163 + 802

A: -19914
****
Q: 6570 + 2902 + 9219 - 6971 + 6886 + 765

A: -6231
****
Q: 6736 + 90 + 9714 - 3714 + 5585 - 8154 - 292 - 3438

A:
6945
****