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: 1626 + 448 + 6034

Output: -4856


Input: Consider Input: 1075 - 4704 - 8582 + 2960 + 8010 + 617 - 4972 + 2013

Output: 5733


Input: Consider Input: 2193 + 6994 + 6748


Output: -11549