using System;

public class Program

{

    public static void Main()

    {

​

        int n;

        Console.WriteLine("Give me a number between 20-100");

        n = int.Parse(Console.ReadLine());

        while (n>100 ||n<20)

        {

            Console.WriteLine("Give me a number between 20-100");

            n=  int.Parse(Console.ReadLine());

    }

        Console.WriteLine("Good job!"); 

    }

    }

​