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:
7581 + 8916 + 7584 + 7731
answer:
-16650


question:
7671 - 2300 - 9650 - 6692 + 7656 + 4940 - 2878 - 5602 + 7222
answer:
14975


question:
2267 + 3874 + 8938 - 5055 + 447
answer:

-5937