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: 5758 + 9179 - 1765 - 4142 - 8736
Example Output: 11222

Example Input: 5394 + 9787 - 7151 - 4774 - 6995 + 6101 - 1317
Example Output: 9743

Example Input: 2524 - 5676 + 9338 - 1038 + 2585 + 2927
Example Output:
-5612