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: 4303 + 4581 + 3027 - 9269 + 3325
Example Output: 2639

Example Input: 178 + 5236 - 8372 - 6825 + 1044 - 7818 - 4765 + 7418
Example Output: 14260

Example Input: 8504 + 3997 + 9884 - 6194 - 5134 + 7909
Example Output:
-1958