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: 4292 - 7663 + 6931 + 1332 + 5698 + 4887 - 9479 - 1571 - 6095

Output: 10252


Input: Consider Input: 1344 + 7632 - 4322

Output: -1966


Input: Consider Input: 6653 - 8652 - 8038 + 7274 + 6836


Output: 9233