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: 220 - 5891 + 2603 + 7125 - 7551 - 3288

Output: 7222


Input: Consider Input: 7149 - 7250 - 2026 - 4929 - 5525 + 1967 + 895 + 4245 - 720

Output: 20492


Input: Consider Input: 2002 + 2091 + 2260 + 8356 - 9728 + 6275 - 1571 + 6507 + 7812


Output: -20000