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: 1737 + 1422 + 9162 - 7244 + 6133

Output: -7736


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

Output: 7803


Input: Consider Input: 8825 + 4144 - 5054 - 702


Output: 10437