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:
6927 - 2357 + 8911 - 4674 - 2728 + 9726 - 1304 - 3277
answer:
2630


question:
4647 - 2106 + 6760 + 3296 - 9772
answer:
6469


question:
1155 + 6254 + 7644 - 4767
answer:

-7976