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: 5945 + 1046 + 9187 + 929

Output: -5217


Input: Consider Input: 1780 - 963 - 3786 - 8938 + 5127 + 4125 + 8911 + 9677

Output: -12373


Input: Consider Input: 6268 - 387 - 9587 + 2543 - 9913 - 5691


Output: 29303