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:
8220 - 9787 + 1100 - 7425
answer:
24332


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


question:
7872 - 1555 - 7608
answer:

17035


