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: 5125 - 607 + 8597 + 4804 + 5962 - 7812 - 176 - 9436 + 6198

Output: -2405


Input: Consider Input: 1078 + 2128 + 513 + 5898 - 8020

Output: 559


Input: Consider Input: 8679 - 7027 - 6988 + 975 + 7156 - 6266 + 2402 + 2049


Output: 16378