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: 9634 + 5896 + 2965 + 6949 - 2226 + 9649 - 3599 - 7110
Example Output: -2890

Example Input: 6815 - 396 - 2187 + 8526 + 1176 - 7273 - 9622
Example Output: 16591

Example Input: 1948 - 7349 - 8167
Example Output:
17464