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.

3681 + 1303 + 5556 + 9895 - 5012 - 6662
-1399

5539 + 616 - 1640 - 7665 - 8787 - 5104 + 8431 + 9502
10186

3270 - 9876 - 9157 + 7126

15177