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:
4148 + 9216 - 5756 - 5558 + 2801 - 7501 + 1939 + 3102 + 6894
answer:
-989


question:
23 - 7991 - 1064 + 8364
answer:
714


question:
5256 + 7592 - 1825
answer:

-511