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: 2303 + 151 - 7031 + 7349 - 8676 + 9084 + 9773

Output: -8347


Input: Consider Input: 1884 + 3670 - 3893 + 782 + 3288 - 7463 + 3214

Output: 2286


Input: Consider Input: 5662 + 3263 - 7810 + 8928 - 3893 - 8293


Output: 13467