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:
8171 + 8357 + 171 - 3129 - 6929
answer:
9701


question:
3631 - 7822 - 8283 + 4667 - 697
answer:
15766


question:
9206 - 3396 + 9712 + 5184 + 3529 - 9177
answer:

3354