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: 1922 - 413 - 5668
Example Output: 8003

Example Input: 344 + 4107 + 9401 + 4490 - 5191 - 1753 - 5869 + 8385 - 7325
Example Output: -5901

Example Input: 7914 - 1434 - 4443 + 3767 + 7110 - 9553
Example Output:
12467