In this task, you are given a string of characters. You need to remove duplicate characters from the string if any, and return the resulting string.

Input: Consider Input: IpFBHqaAeWEXwHnzkFhZQTlS

Output: IpFBHqaAeWEXwnzkhZQTlS


Input: Consider Input: GfjMUpfjwqpWyIVlTdNIOYoJND

Output: GfjMUpwqWyIVlTdNOYoJD


Input: Consider Input: UjFUhwNrJXIGhoygEiQJAEub


Output: UjFhwNrJXIGoygEiQAub


