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.

3980 + 6122 + 3529 - 9952
4281

9085 + 2845 - 6159 + 1404 + 2110 - 8797
17682

5308 - 1420 + 6884 - 5537 - 2330 - 3854 + 3006

8559