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.

Example Input: 2596 + 8164 - 6385 + 6704
Example Output: -5887

Example Input: 6245 + 6705 - 5181 + 7350 - 5051 - 8984 - 476 + 3773
Example Output: 8109

Example Input: 1753 - 4314 + 3538 - 7342 + 6326 + 6393 + 136 + 161 + 4337
Example Output:
-7482