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: 5409 - 5550 + 3864 - 5911 + 5222
Example Output: 7784

Example Input: 4993 - 9334 - 5415 + 8531 - 5640 + 896 + 3114 - 1984
Example Output: 14825

Example Input: 2875 + 665 + 7735 + 1554 - 2339 - 9926 - 7782 - 2447 - 8332
Example Output:
23747