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: 5193 - 9816 - 9875 - 1011 + 1147 + 5023
Example Output: 19725

Example Input: 1320 + 3923 - 1080 - 3521 - 8998 + 4479 - 2559 - 7680
Example Output: 16756

Example Input: 5582 + 6931 + 2423 + 176 - 3407 - 5015 + 7229 + 9952
Example Output:
-12707