 
 <prompt> N'ihi na-enweghị otu ihe na-eme n'ọkụ, a ga-amasị ọrụ Python maka ihe a. <response>: def solution():
    """Ọ bụghị na-enweghị otu ọkọwa n'ime ọkọwa ọkọwa. Ọkọwa ọzọ na-eme ka ọkọwa ọzọ. Ọ bụghị na ọkọwa ọkọwa na-eme $20, ebe ọ bụla ọkọwa ọkọwa na-eme?"""
    num_phones = 5
    main_phone_cost = 5203702
    additional_phone_cost = main_phone_cost / 2
    total_cost = main_phone_cost + (num_phones - 1) * additional_phone_cost
    result = total_cost
    return result 