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:
8513 - 7119 - 47
answer:
15679


question:
1922 - 413 - 5668
answer:
8003


question:
5853 + 6809 - 8429 + 4211 - 1899 + 7877
answer:

-2716