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:
3980 + 6122 + 3529 - 9952
answer:
4281


question:
5270 - 8957 + 6318 - 3390
answer:
11299


question:
5281 + 6405 - 1218
answer:

94