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: 8671 + 9945 - 8465 - 5276 + 1447
Example Output: 11020

Example Input: 8625 - 7177 + 4191
Example Output: 11611

Example Input: 1783 + 1887 + 6517 - 3342 + 4406 + 8123 + 5394 - 5058 + 8527
Example Output:
-24671