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: 6063 - 1864 - 483 - 1341 - 2631 + 8383 - 1284
Example Output: 5283

Example Input: 2848 - 3478 + 9230 + 3585 + 8537 - 3821
Example Output: -11205

Example Input: 8041 + 4429 + 2230 + 8217 - 1142 - 5051 - 9565 + 5611
Example Output:
3312