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: 4810 - 7988 + 5646 + 8226 + 5009 - 1013 + 7246 - 4319 - 1934

Output: -6063


Input: Consider Input: 2297 + 4208 + 9691 - 6995 + 738 + 1245 - 7806

Output: 1216


Input: Consider Input: 2297 + 4208 + 9691 - 6995 + 738 + 1245 - 7806


Output: 1216