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: 9403 + 6381 - 6599 - 2097 - 3046
Example Output: 14764

Example Input: 3844 - 5783 + 7487
Example Output: 2140

Example Input: 6193 + 791 + 2667 + 8888
Example Output:
-6153