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:
298 + 1699 + 1367 + 5001
answer:
-7769


question:
5450 - 7077 + 4877
answer:
7650


question:
5604 + 9122 - 2634 - 3299 + 8523 + 9648 - 9789 - 8880 + 7810
answer:

-4897