TASK DEFINITION: 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.
PROBLEM: DTVafifjOMqmBOIyBJysbYro

SOLUTION: DTVafijOMqmBIyJsbYro

PROBLEM: yNuwnqBsSCMSttcxfDtHV

SOLUTION: yNuwnqBsSCMtcxfDHV

PROBLEM: XTvynTEMpnKChFnxukxcRdfNFdpUQm

SOLUTION:
XTvynEMpKChFxukcRdfNUQm