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: 1656 - 2355 + 4098 + 8586 + 7634 + 9427 + 9429

Output: -35163


Input: Consider Input: 1589 + 4479 - 6111 - 3158 - 7662

Output: 14041


Input: Consider Input: 3635 + 3240 + 952 - 65 - 7094


Output: 6602