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:
3681 + 1303 + 5556 + 9895 - 5012 - 6662
answer:
-1399


question:
9493 + 2402 - 721 + 5448 + 2919
answer:
-555


question:
5513 + 1221 + 8910 + 8422
answer:

-13040