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:
1678 - 831 + 1988 - 3248 - 7672 + 8515 + 5236 - 2764 - 6078
answer:
6532


question:
1344 + 7632 - 4322
answer:
-1966


question:
6720 - 4223 + 5399 - 9312 - 3020 - 436 + 6399 - 2509
answer:

14422