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: 7291 - 941 - 33 + 3812 + 4851 - 8716 - 6838 - 740
Example Output: 15896

Example Input: 4444 + 4575 - 2114 - 4099
Example Output: 6082

Example Input: 5891 + 5687 + 6434 - 9679 + 2950 - 5934 + 1364 + 6773
Example Output:
-1704