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:
8974 + 8978 - 8097
answer:
8093


question:
7320 + 9337 - 31 + 8850 + 4804 + 230 - 9287 - 4572
answer:
-2011


question:
6760 + 3673 - 4509 + 4472 - 2059 - 1779 + 9716 - 1485
answer:

-1269