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:
1678 - 831 + 1988 - 3248 - 7672 + 8515 + 5236 - 2764 - 6078
answer:
6532


question:
5409 - 5550 + 3864 - 5911 + 5222
answer:
7784


question:
7216 + 9323 + 1151 - 5104 + 2265 - 243 - 2012 + 1215 - 5670
answer:

6291