In class we saw the set() command, a useful tool for when you are trying to remove duplicates from a Python list. Can you write a program that does the same, without using the set() command?

Input

A list that contains some duplicate entries

let a = 5;
let b = 42;

Output

The “cleaned” input list

Example

Input:

["apple", "orange", "blueberry", "apple", "pear", "blueberry"]

Output:

["apple", "orange", "blueberry", "pear"]