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:
3909 - 4736 + 2593 + 3592
answer:
2460


question:
4035 - 7636 + 5719 + 8287 + 9317 - 8218 + 4932 + 2275 - 9347
answer:
-1294


question:
535 + 6047 + 9149 + 6804 - 6864 - 6142 - 5310
answer:

-3149