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: 8666 + 80 + 2370 - 4680 - 3944 + 3621 + 4402 - 5171
Example Output: 11988

Example Input: 7053 - 797 + 1011 - 43 - 2798 - 1572 - 4498
Example Output: 15750

Example Input: 4755 + 7060 + 883 + 1220 - 7529 - 688 + 303 - 4955 + 8750
Example Output:
-289