What will come in place of question mark(?) in the following series?
DMÂ Â Â Â Â Â Â Â NE Â Â Â Â Â Â Â Â Â FO Â Â Â Â Â Â Â Â Â QH Â Â Â Â Â Â Â Â Â ?
The letters in a pair move on place forward in the next pair and shift places within pair. DM → EN → NE; NE → OF → FO; GP → HQ → QH; QH → RI → IR.
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