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: 9852 - 24 - 2468 + 5798 + 6384

Output: 162

Input: Consider Input: 6817 + 2415 - 9368 - 2334

Output: 16104

Input: Consider Input: 9534 + 4836 + 6089 - 5422 + 4937 - 9879 + 9191 - 5742 + 6534
Output: -1010