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:
2603 + 1868 - 4242
answer:
4977


question:
4839 - 962 + 7552
answer:
-1751


question:
8929 - 6145 + 8551 - 1836 + 9159
answer:

-800