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: 3384 - 2434 - 5567
Example Output: 11385

Example Input: 5527 - 35 - 9988 + 7417 - 5498
Example Output: 13631

Example Input: 3143 - 1213 - 3543 + 7186
Example Output:
713