Seven letters are arranged to form a meaningful word. I is placed at the extreme left end. Three letters are placed between I and U. Letter E is placed two places away from letter U. D and E are placed adjacent to each other. N is placed to the left of U. Only one letter is placed between N and L. C was also one of the seven letters. Now, if only one meaningful word is formed then, which letter is third letter from the left end of the newly formed word. If no meaningful word is formed, mark X as your answer, and if more than one such word is formed, mark Y as your answer?