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: 3968 + 5044 + 8713
Example Output: -9789

Example Input: 9118 + 5545 - 3160 + 3672 - 3568 + 5997 + 205 + 7095
Example Output: -6668

Example Input: 8719 + 3277 + 855 + 5440 - 8920 + 301 + 3086 + 6846 + 9778
Example Output:
-11944