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: 808 - 4935 + 288 + 9758 + 8690 + 384 + 4674 + 5769 - 8736
Example Output: -15084

Example Input: 3225 + 3857 + 8462 + 230 - 2831 + 8706 + 9484 + 6655 - 2926
Example Output: -28412

Example Input: 1953 + 9459 - 5372 - 8828 - 4757 - 1069 - 5456 + 2172 + 3516
Example Output:
12288