def METHOD_NAME(sortable_lccs: Iterable[str]) -> str:
    # Choose longest; theoretically most precise?
    # Note we go to short-form first, so eg 'A123' beats 'A'
    def short_len(lcc: str) -> int:
        return len(sortable_lcc_to_short_lcc(lcc))
    return sorted(sortable_lccs, key=short_len, reverse=True)[0]