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: 1928 - 8869 + 937 + 6209 + 5391 - 5357 + 6743
Example Output: -3126

Example Input: 5125 - 607 + 8597 + 4804 + 5962 - 7812 - 176 - 9436 + 6198
Example Output: -2405

Example Input: 6058 - 7573 - 3544 - 3301 - 4968
Example Output:
25444