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: 220 - 5891 + 2603 + 7125 - 7551 - 3288

Output: 7222


Input: Consider Input: 8247 - 6987 - 8915 - 9962

Output: 34111


Input: Consider Input: 3563 - 360 + 8372 - 6055 - 2141 - 6106


Output: 9853