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:
1078 + 2128 + 513 + 5898 - 8020
answer:
559


question:
9634 + 5896 + 2965 + 6949 - 2226 + 9649 - 3599 - 7110
answer:
-2890


question:
2396 - 1023 - 9551
answer:

12970