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: 5661 + 5694 + 8212 - 8431 - 6340 + 4336 + 2022 - 5623
Example Output: 5791

Example Input: 9001 + 6216 - 1478 + 5475 - 8693 - 3911 - 319 + 4768 - 320
Example Output: 7263

Example Input: 2836 + 7118 + 2680 - 532 - 3848 + 8386
Example Output:
-10968