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.

7337 + 5801 - 8640 - 4143 - 2557
16876

5175 - 1386 - 5328 - 898 + 5361 - 376 + 1286 + 861
5655

3113 + 4970 + 2898

-4755