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: 1884 + 3670 - 3893 + 782 + 3288 - 7463 + 3214
Example Output: 2286

Example Input: 7442 + 227 + 52 + 2436 - 3303 + 8408 + 4314
Example Output: -4692

Example Input: 1287 - 1578 + 9624
Example Output:
-6759