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: 9751 - 3599 + 7441 - 2176 + 2662 + 9430 + 8207 + 5927 - 8529
Example Output: -9612

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

Example Input: 3481 + 8316 + 7831 - 1357 - 5360
Example Output:
-5949