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:
6433 + 6891 + 2386 - 7923 - 2419 + 7641
answer:
-143


question:
4310 + 5678 + 9065 - 8181 + 5925 - 3189 + 558
answer:
-5546


question:
8552 + 4502 + 4798 + 8142
answer:

-8890