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.

[Q]: MjGSdmgICPfwZJpwblfTUaGUlJna
[A]: MjGSdmgICPfwZJpblTUan


[Q]: SFIxkcMKVMuCoybMuVPzYFOYUfd
[A]: SFIxkcMKVuCoybPzYOUfd


[Q]: ppVOlyLEPBhxIPhMqZGRzdvfVvH
[A]:
pVOlyLEPBhxIMqZGRzdvfH