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.

6738 - 471 + 8724
-1515

8839 + 4786 - 7068 + 5502 + 1623 - 1959 - 8567 + 3743 + 4578
6201

3343 + 7060 - 4690 - 2117 + 4795 + 9174 + 3833 + 2592 - 6959

-10345