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: 4095 - 9640 - 5113 - 9355
Example Output: 28203

Example Input: 2432 + 588 - 6240 + 8670
Example Output: -586

Example Input: 7319 + 2024 - 168
Example Output:
5463