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

Example Input: 1616 - 440 + 11
Example Output: 2045

Example Input: 3885 - 6704 - 3031
Example Output:
13620