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: 3997 - 5279 - 8866 - 8214 - 3538 + 6690 - 4565 + 30

A: 27739
****
Q: 6570 + 2902 + 9219 - 6971 + 6886 + 765

A: -6231
****
Q: 4163 - 5871 - 1773 + 817 - 4083

A:
15073
****