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: 5774 + 1888 + 5355 - 6957 - 7140 - 9762
Example Output: 22390

Example Input: 4110 - 9440 + 557 + 7868 - 6315 + 2518 - 9049 + 3905 + 2052
Example Output: 12014

Example Input: 6098 + 2043 + 5478 + 9364 + 7094 + 548 + 2343
Example Output:
-20772