using System;

​

public class Dice

{

    protected Random rnd;

    public Dice(int seed)

    {

        rnd = new Random(seed);

    }

​

    public virtual int Next()

    {

        return rnd.Next(1, 7);

    }

}

​

public class FairRandom : Dice

{

    private int lastNumber = 3;

    private Random rnd;

    public FairRandom(string input): base(Convert.ToInt32(input))

    {

        int seed = Convert.ToInt32(input);

        rnd = new Random(seed);

    }

​

    public override int Next()

    {

        int num;

        if (lastNumber == 6)

        {

            num = rnd.Next(1, 3);

        }

        else if (lastNumber == 1)

        {

            num = rnd.Next(5, 7);

        }

        else

        {

            num = rnd.Next(1, 7);

        }

​

        lastNumber = num;

        return num;

    }

}

​

public class Program

{

    public static void Main()

    {

        string input;

        Console.Write("Enter an integer random seed: ");

        input = Console.ReadLine();

        FairRandom rnd = new FairRandom(input);

        for (int i = 0; i < 100; i++)

            Console.WriteLine(rnd.Next());

    }

}