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: 7266 - 5601 + 6292 - 3129 - 4781 - 6736 - 1566 - 7004
Example Output: 29791

Example Input: 5371 + 2365 + 9586 - 6312 - 8369 - 7840 - 1823
Example Output: 17764

Example Input: 6698 + 5565 - 4485 + 8409 + 7104 - 8717
Example Output:
-1178