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:
2671 + 3943 - 5777 + 7680
answer:
-3175


question:
171 - 966 + 1234 - 1722 - 4406 + 9773 - 1161
answer:
-2581


question:
3238 + 3646 - 5760 + 9128
answer:

-3776