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: 9852 - 24 - 2468 + 5798 + 6384
Example Output: 162

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

Example Input: 1507 + 5914 + 1648
Example Output:
-6055