using System;

​

public class Program {

    public static int randseed = 464678;

    public static void Main() {

        Console.WriteLine(Rand(0, 20));

        Console.WriteLine(Rand(0, 20));

        Console.WriteLine(Rand(0, 20));

        Console.WriteLine(Rand(0, 20));

        Console.WriteLine(Rand(0, 20));

        Console.WriteLine(Rand(0, 20));

    }

    public static int RandomSeed() {

        int w = randseed / 127773;

        randseed = (randseed - w * 127773) * 16807 - w * 2836;

        if (randseed < 0) {

            randseed += int.MaxValue;

        }

        else if (randseed == 0) {

            randseed = int.MaxValue - 1;

        }

        return randseed;

    }

    public static int Rand(int min, int max){

        return (min + RandomSeed() / (int.MaxValue / (max - min + 1) + 1));

    }

}