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: 9806 + 3365 + 4506 + 7148 - 8080 + 5035 + 2028 + 7278

Output: -11474


Input: Consider Input: 1344 + 7632 - 4322

Output: -1966


Input: Consider Input: 5864 + 1124 + 8693 + 9334 - 3186 + 9297 + 9008


Output: -28406