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: 5860 + 3039 - 7874 - 3584 - 144
Example Output: 14423

Example Input: 7291 - 941 - 33 + 3812 + 4851 - 8716 - 6838 - 740
Example Output: 15896

Example Input: 3856 - 7465 - 6223 - 8289 + 3805 - 3801 - 8279 + 8296
Example Output:
25812