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: 4682 - 6673 + 4582 - 2631 + 430 - 2808 + 6340 - 7201
Example Output: 12643

Example Input: 5000 + 8474 - 7071 - 6976 + 6373 - 466
Example Output: 4666

Example Input: 4156 + 1480 - 7848 + 8351 - 8472 + 8500 - 7371 - 4483 + 4905
Example Output:
9094