def format_polygon_line(indiviual_points):
    """
    Given a list of coordinates [lat1, long1, lat2, long2, lat3, long3, ...], create a string with
    longitude latitude couples separated by commas, and enclosed in parentheses, ex:
    '(long1 lat1, long2 lat2, long3 lat3, ...)'
    :param indiviual_points: a list of coordinates.
    :return: a formatted polygon line
    """
    formatted_string = '('
    for i in range(0, len(indiviual_points), 2):
        formatted_string += indiviual_points[i + 1] + ' ' + indiviual_points[i] + ','
    formatted_string = formatted_string[:-1]
    formatted_string += ')'
    return formatted_string