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.

8739 - 8064 - 7000 + 6709
17094

597 + 4303 + 4507 + 4779 - 8079
-4913

3071 - 5299 + 206 + 3214 + 6040 + 5785 - 6760 - 8070

7955