using System;

public class Program

{

    public static void Main()

    {

        var today = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 0, 0, 0);

        var memberSince = new DateTime(2017, 6, 28);

        var nextAnniversary = new DateTime(DateTime.Now.Year, memberSince.Month, memberSince.Day);

        // change these

        var lastUpdate = new DateTime(2018, 6, 28);

        var verifiedDate = new DateTime(2018, 6, 28);

        Console.WriteLine("            Today: {0}", today.ToString());

        Console.WriteLine("     Member Since: {0}", memberSince.ToString());

        Console.WriteLine(" Next Anniversary: {0}", nextAnniversary.ToString());

        Console.WriteLine();

        Console.WriteLine("      Last Update: {0}", lastUpdate.ToString());

        Console.WriteLine("Last Verification: {0}", verifiedDate.ToString());

        Console.WriteLine();

        if ((today >= nextAnniversary) && (nextAnniversary > verifiedDate && nextAnniversary > lastUpdate))

        {

            Console.WriteLine("Display Modal");

        }

        else

        {

            Console.WriteLine("Do not display modal");

        }       

    }

}