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:
4773 + 2177 - 7850 + 9364 - 3636 + 4921
answer:
-203


question:
7961 - 5474 + 4234 - 4358 - 7627 - 2291 - 9771 + 9867 - 813
answer:
24194


question:
6287 - 1878 - 784 + 1483 - 7295 + 3705 + 3594 + 6399 + 7979
answer:

-6916