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.

Input: Consider Input: 1943 - 4300 + 9696 + 9307 + 2702 - 798 - 26

Output: -14638


Input: Consider Input: 4397 - 3478 - 9837 - 7164 + 7972 + 3676

Output: 13228


Input: Consider Input: 9054 - 5731 + 605 - 3436 - 1037 - 8404 - 7170 - 3920


Output: 38147