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.

5911 + 2514 + 1526 + 4574 + 1003 + 804 + 3135 - 814 + 5810
-12641