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:
1837 - 6362 - 226
answer:
8425


question:
7163 + 3916 + 4926 + 2532 - 2743 - 5389 + 7290
answer:
-3369


question:
770 + 824 - 2624
answer:

2570