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: 8625 - 7177 + 4191
Example Output: 11611

Example Input: 7403 - 3327 + 5889 + 1034 + 1607 - 313
Example Output: 2513

Example Input: 8884 + 8024 + 6034 - 6012 + 365
Example Output:
473