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:
2514 - 3539 - 8491 + 7351 - 1448
answer:
8641


question:
9060 + 6995 - 9090 + 8450 - 5246 + 5012
answer:
2939


question:
5142 + 8013 + 4045 + 570 - 5943
answer:

-1543