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.

Input: Consider Input: 1573 + 2934 + 9701

Output: -11062


Input: Consider Input: 1724 - 4426 - 960 - 8997 - 5797 + 8037 - 7699 + 3023

Output: 18543


Input: Consider Input: 8098 - 5900 - 1217 + 9266 + 4318 + 3761


Output: -2130