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: 5753 - 4358 + 6312 + 2406 + 5334 - 4718 + 6262
Example Output: -5485

Example Input: 1011 - 5404 + 4286 - 549 - 4178 - 1559
Example Output: 8415

Example Input: 6455 + 355 - 1547 + 2626 - 3431 - 1587 - 6509 + 9123 - 9755
Example Output:
17180