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:
8354 + 2602 + 1315
answer:
4437


question:
4110 - 9440 + 557 + 7868 - 6315 + 2518 - 9049 + 3905 + 2052
answer:
12014


question:
4776 - 660 + 9949 - 2199
answer:

-2314