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.
--------
Question: 4287 + 3355 + 4251 + 7433 + 7069

Answer: -17821


Question: 4486 + 7884 - 172 + 2615

Answer: -5841


Question: 8715 + 288 - 7368

Answer:
15795