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: 8085 + 9109 - 9653
Example Output: 8629

Example Input: 1592 + 7031 - 1902 + 5922 - 1351 + 8340 - 2032
Example Output: -14416

Example Input: 5080 - 299 + 3905 + 2547 - 6905 + 8384 - 7884 - 9023 + 7937
Example Output:
6418