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.

6567 + 2835 + 6725
-2993

4682 - 6673 + 4582 - 2631 + 430 - 2808 + 6340 - 7201
12643

4994 + 1350 + 6078 - 9558 + 1755 + 6139 + 1821 - 35

-2556