using System;

public class Program

{

    public static void Main()

    {

        var john = new Person()

        {

            FirstName = "John",

            MiddleName = "Herman",

            LastName = "Jones",

            Address = new Address()

            {

                StreetAddress1 = "74 Maple Street",

                StreetAddress2 = "Apt 5",

                StreetAddress3 = "",

                City = "Buffalo",

                State = "NY",

                Country = "US",

                ZipCode = "14201"

            }

        };

        Console.WriteLine(john.ToString());

    }

}

​

public class Person

{

    public string FirstName { get; set; }

    public string MiddleName { get; set; }

    public string LastName { get; set; }

    public Address Address { get; set; }

    public sealed override string ToString()

    {

        return $"{FirstName} {MiddleName} {LastName}";

    }

}

​

public class Address

{

    public string StreetAddress1 { get; set; }

    public string StreetAddress2 { get; set; }

    public string StreetAddress3 { get; set; }

    public string City { get; set; }

    public string State { get; set; }

    public string Country { get; set; }

    public string ZipCode { get; set; }

}