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: 8838 + 1241 - 4918 - 8353 - 4691 - 5880
Example Output: 31439

Example Input: 344 - 7553 + 7224 + 1616 + 672 + 916
Example Output: -2531

Example Input: 8294 + 4035 - 7563 - 8979
Example Output:
20801