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.

5856 - 8885 - 8510 + 7879 + 2100
13272

9864 - 5325 - 3230 - 5129 + 7733 + 3498 - 9250
21567

8135 - 2883 + 7793 - 4176

7401