def METHOD_NAME(self):
    r"""
    EXAMPLES::
        sage: FiniteCoxeterGroups().example()
        The 5-th dihedral group of order 10
        sage: FiniteCoxeterGroups().example(6)
        The 6-th dihedral group of order 12
    """
    return "The %s-th dihedral group of order %s" % (self.n, 2 * self.n)