
    Design a function for a friend recommendation system that takes a user's existing interest profile and a newly discovered common interest, and creates enhanced matching categories by prefixing the new interest to each existing interest in the profile. The function should return an updated profile list where each original interest is preceded by the new common interest to create more specific matching categories.
    

    
def insert_element(list, element):
    """
    Design a function for a friend recommendation system that takes a user's existing interest profile and a newly discovered common interest, and creates enhanced matching categories by prefixing the new interest to each existing interest in the profile. The function should return an updated profile list where each original interest is preceded by the new common interest to create more specific matching categories.
    

    """
def insert_element(list, element):
    """
    Design a function for a friend recommendation system that takes a user's existing interest profile and a newly discovered common interest, and creates enhanced matching categories by prefixing the new interest to each existing interest in the profile. The function should return an updated profile list where each original interest is preceded by the new common interest to create more specific matching categories.
    

    """
    list = [v for elt in list for v in (element, elt)]
    return list