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.

Example Input: 4533 - 9566 - 2287 + 4647 + 5056 + 6340 + 777 - 4673 + 2170
Example Output: 2069

Example Input: 6567 + 2835 + 6725
Example Output: -2993

Example Input: 5274 + 8123 + 5544 + 7060 - 1023
Example Output:
-14430