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

9403 + 6381 - 6599 - 2097 - 3046
14764

7211 - 614 + 1584 - 4857 - 1495 - 1821 - 2219

16633