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: 3664 - 184 - 3835 + 2124 - 1567 - 8341 - 3628 - 8279
Example Output: 27374

Example Input: 7240 - 3294 - 2859 + 1798 + 9958 - 6797
Example Output: 8434

Example Input: 5296 - 4481 - 5755 - 6455 - 5171 - 725 + 449 - 1320
Example Output:
28754