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: 5856 - 8885 - 8510 + 7879 + 2100
Example Output: 13272

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

Example Input: 4331 - 362 - 8646 - 8722 + 6424 + 4083 - 579 + 4561
Example Output:
7572