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:
8294 + 6661 + 4555 + 6171
answer:
-9093


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


question:
5507 + 4243 + 5897 + 7115 - 6687 + 3875 - 298 + 1379 + 1973
answer:

-11990