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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def move_consonant_right(letters: List[str], positions: List[int]) -> List[str]: """ Given a list of letters, and a list of consonant positions, move the consonant positions to the right, merging strings as necessary. :param letters: :param positions: :return: ['a', 'b', '', '', 'bra'] """

    for pos in positions:
        letters[pos + 1] = letters[pos] + letters[pos + 1]
        letters[pos] = ""
    return letters