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: 3254 - 200 + 4450 - 6393 - 2480 + 4564 + 9650
Example Output: -6337

Example Input: 7308 + 5010 + 6882
Example Output: -4584

Example Input: 3337 + 9906 + 9733 - 853 + 5075 - 2064 + 9450 - 3886
Example Output:
-24024