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: 5774 + 1888 + 5355 - 6957 - 7140 - 9762
Example Output: 22390

Example Input: 2776 - 8931 + 2788 + 8315 - 6570 + 8385 - 2789
Example Output: 1578

Example Input: 4285 + 7480 + 866 - 5490 - 7452 - 3814 + 1045 + 38
Example Output:
11612