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: 1837 - 6362 - 226
Example Output: 8425

Example Input: 1344 + 7632 - 4322
Example Output: -1966

Example Input: 5582 + 6931 + 2423 + 176 - 3407 - 5015 + 7229 + 9952
Example Output:
-12707