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: 1943 - 4300 + 9696 + 9307 + 2702 - 798 - 26
Example Output: -14638

Example Input: 1078 + 2128 + 513 + 5898 - 8020
Example Output: 559

Example Input: 4854 - 2012 + 5206 - 7285 - 579
Example Output:
9524