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: 333 - 4061 - 2641 + 9107 - 876 + 913 - 2286 - 7626

Output: 7803


Input: Consider Input: 3394 - 2316 - 9713

Output: 15423


Input: Consider Input: 4431 + 4117 - 3484 + 8947 + 1326 + 3768 - 3469


Output: -6774