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.

3140 - 7915 + 2559 - 9684 + 4182 - 683 + 7754 + 763 + 4851
1313

6589 - 9791 + 4411 + 1562 - 9983
20390

3467 - 179 - 9559 + 4455 - 8201 + 7181

9770