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: 4310 + 5678 + 9065 - 8181 + 5925 - 3189 + 558

Output: -5546


Input: Consider Input: 7457 - 9732 + 1691 + 2450 + 16 + 1610 + 1729

Output: 9693


Input: Consider Input: 7588 + 5814 + 1602 + 9169 - 4487


Output: -4510