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

Example Input: 1626 + 448 + 6034
Example Output: -4856

Example Input: 6267 + 3545 + 4904 + 4580
Example Output:
-6762