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: YBzIMCsiNvbQNvaPVdtGtoPNQ

Output: YBzIMCsiNvbQaPVdtGo


Input: Consider Input: cJvCWyzChbEUpBEoGsRInWynanLZ

Output: cJvCWyzhbEUpBoGsRInaLZ


Input: Consider Input: kFYhXiGpfqXrSOvkICCiLY


Output: kFYhXiGpfqrSOvICL