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: 5753 - 4358 + 6312 + 2406 + 5334 - 4718 + 6262
Example Output: -5485

Example Input: 2474 + 4117 - 310 - 2018 - 6488 - 3458 - 1404
Example Output: 12035

Example Input: 1533 + 3644 + 7391 + 3182 - 6346 - 7615 + 5538
Example Output:
-4261