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:
1231 + 6657 - 8263
answer:
2837


question:
8600 - 7082 + 49 + 8639 - 7036
answer:
14030


question:
802 + 9382 - 3261
answer:

-5319