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: 2348 - 6075 + 2149 - 1926 - 9532 - 9774 + 2760 - 6500 + 8335
Example Output: 22911

Example Input: 1592 - 2894 - 9980 + 4503 - 4006 - 8338 - 6314 + 4860 + 6836
Example Output: 16925

Example Input: 6348 - 2614 + 3559 + 9670 - 1137 - 9684
Example Output:
6554