using System;

//using System.Collections.Generic;

​

public class FairRandom {

    private int lastNumber = 3;   // we always need to know the last number generated

                                  // so it's a private field

    private Random rnd;           // we would also like to reuse the same Random object 

    public FairRandom() {

​

         rnd = new Random();

    }

         public FairRandom(int value) {

         rnd = new Random(value);

    }

    public 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("Enter a number:");

        int input = Convert.ToInt32(Console.ReadLine());

        FairRandom rnd = new FairRandom(input);

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

            Console.WriteLine(rnd.Next());

    }

}