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:
6163 + 7356 + 5264 - 4766 + 9373 + 1271
answer:
-12335


question:
5989 - 6394 + 3845 + 1679 - 5682 + 8226 - 674 - 1284
answer:
6273


question:
7071 - 9777 + 3364 + 6520 + 6427 + 879 - 801 + 8721
answer:

-8262