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: 5175 - 1386 - 5328 - 898 + 5361 - 376 + 1286 + 861
Example Output: 5655

Example Input: 5939 - 673 - 8282
Example Output: 14894

Example Input: 633 - 538 + 8609
Example Output:
-7438