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: 3677 + 3282 + 6324 + 6039 + 2578 - 7896 + 671 + 4192

Output: -11513


Input: Consider Input: 3664 - 184 - 3835 + 2124 - 1567 - 8341 - 3628 - 8279

Output: 27374


Input: Consider Input: 86 - 2166 - 8519 - 7184 - 362 - 2203 + 1579 - 1133 + 3978


Output: 16096