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:
597 + 4303 + 4507 + 4779 - 8079
answer:
-4913


question:
136 + 9772 - 2848 - 4980 + 6156 - 883 + 5407 + 3211
answer:
-15699


question:
9964 + 6086 - 8107 + 3363 + 4528 + 6056 - 9270 - 379
answer:

7687