def get_file_name(file_name, extension):
    """
    Get full file name
    :param file_name: File name without extension
    :param extension: File extension
    :return: File name with extension
    """
    if str(file_name).endswith(extension):
        full_file_name = str(file_name)
    else:
        full_file_name = str(file_name) + '.' + str(extension)
    return full_file_name