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.

7025 + 6005 + 6548 - 4628
-900

556 + 5223 - 5888 + 4866
-3645

2768 + 5746 + 3305 + 9132 - 3169 - 9215 + 50 + 4540 + 4367

-11988