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: 3672 + 2445 + 4715 - 5145 - 8515 + 3793 - 3753
Example Output: 10132

Example Input: 8974 + 8978 - 8097
Example Output: 8093

Example Input: 9306 - 4858 - 2800 + 7038 - 5966 + 7818 + 9704
Example Output:
-1630