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.

8849 + 869 + 880 + 8843 + 8122
-9865

6492 - 3901 + 3666 + 9196 - 3917 - 133
1581

7652 - 2999 + 8474 + 9820 - 9857 + 3312

-1098