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: 7442 + 227 + 52 + 2436 - 3303 + 8408 + 4314
Example Output: -4692

Example Input: 5989 - 6394 + 3845 + 1679 - 5682 + 8226 - 674 - 1284
Example Output: 6273

Example Input: 5492 - 5861 - 9527 + 4965 + 6853 - 22 + 1547 + 8838
Example Output:
-1301