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: 3055 - 3062 - 5311

Output: 11428


Input: Consider Input: 7344 + 9206 + 3989 + 5648 - 7620

Output: -3879


Input: Consider Input: 3614 + 9256 + 5294 - 7276 - 610 + 2041 + 4885 + 9761


Output: -19737