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:
4291 + 2761 - 4339 + 8922
answer:
-3053


question:
1701 + 3893 - 695 + 2870 + 5011
answer:
-9378


question:
5907 - 9137 - 9823 + 2879
answer:

21988