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:
3915 + 4904 + 4887 + 7162 - 3798 + 233 + 1101 - 7758 - 4627
answer:
1811


question:
9237 + 5388 - 46 + 2616 + 8227 - 3578 - 5065 + 1176
answer:
519


question:
899 + 6724 + 6350 - 9203 - 813
answer:

-2159