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: 5799 + 5384 + 4924 + 5003 + 983 + 2274 - 5524

Output: -7245


Input: Consider Input: 3980 + 6122 + 3529 - 9952

Output: 4281


Input: Consider Input: 3591 + 5819 - 8713


Output: 6485