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:
7427 + 8795 - 4104 + 7720 - 6667
answer:
1683


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


question:
9569 + 8889 + 5912 + 8468 - 5830 - 1399
answer:

-6471