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: 4272 + 6013 - 9409 - 6130 + 9575 + 2198
Example Output: 2025

Example Input: 3394 - 2316 - 9713
Example Output: 15423

Example Input: 5575 - 8682 + 6825 + 3128 - 1917 - 5950 - 8449 - 7316 + 546
Example Output:
27390