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:
8135 - 2883 + 7793 - 4176
answer:
7401


question:
2306 - 650 - 3209
answer:
6165


question:
974 - 1668 - 5089 + 3945 + 9360
answer:

-5574