def METHOD_NAME():
    cities = get_list_county()
    towns = get_list_town()
    data_list = []
    for town_code, town_name in towns.items():
        city_code = town_code[:1]
        city_name = cities[city_code]
        data_list.append(
            CityTownItem(city_code, city_name, town_code, town_name))
    return data_list