using System;

using System.Collections.Generic;

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;  

    public FairRandom(int seed) : base(seed)

    {

        lastNumber = 3;

    }

    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()

    {

        Console.WriteLine("Please Enter your start number:");

        string s;   

        s = Console.ReadLine();

        int i = 0;

        try{

             i = int.Parse(s);

        }

        catch(Exception e){

            Console.WriteLine(e.Message);

            Console.WriteLine("You can run this again to play one more time");

            return;

        }

        if(i>6 || i < 0)

        {

            Console.WriteLine("Please enter the right number smaller than 7.");

            Console.WriteLine("You can run this again to play one more time");

            return;

        }

        FairRandom rnd = new FairRandom(i);

        Console.WriteLine();

        for (int j=0;j<10;j++)

            Console.WriteLine(rnd.Next());

        Console.WriteLine("You can run this again to play ome more time");

​

    }

}