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: 5355 - 3029 - 4426 - 467 + 3089 - 2982 - 4645 - 9070 - 3676
Example Output: 30561

Example Input: 1834 - 2630 + 3119 - 3024 - 1805 + 5287 + 9826
Example Output: -8939

Example Input: 1492 + 7386 - 6843 - 4433
Example Output:
5382