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.

3968 + 5044 + 8713
-9789

395 - 3060 - 445 + 3450 + 3365
-2915

8141 + 7741 + 4558 + 8158 - 4535 - 3840 + 7849 + 6026

-17816