def build_about_page_url_from_id(user_id):
    """
    >>> build_about_page_url_from_id(123)
    'https://mbasic.facebook.com/profile.php?v=info&id=123'
    """
    return "https://mbasic.facebook.com/profile.php?v=info&id={0}". \
        format(user_id)