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.

8213 - 7166 - 3524 + 2770 + 767 - 3629 - 7894
26889

220 - 5891 + 2603 + 7125 - 7551 - 3288
7222

8158 - 9239 + 1298

16099