instruction:
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:
335 + 4730 + 4604 - 5559 + 7282 - 7812
answer:
-2910


question:
4533 - 9566 - 2287 + 4647 + 5056 + 6340 + 777 - 4673 + 2170
answer:
2069


question:
4231 - 711 - 1004 - 3
answer:

5949