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: 3083 - 4468 - 7941 + 7484 + 2789
Example Output: 5219

Example Input: 146 - 5209 + 892
Example Output:
4463