using System;

public class Program

{

    public static void Main()

    {

        //Sofia Montalvo

        int num1;

        Console.WriteLine("PLEASE GIVE ME YOURBOWLING SCORE");

        num1 = int.Parse( Console.ReadLine());

        if( num1 == 300)

        {

        Console.WriteLine("Perfect score!");    

        }

        if(num1 >= 200 && num1 < 300)

        {

        Console.WriteLine("Great score!");

        }   

        if(num1 >= 100 && num1 < 200)

        {

        Console.WriteLine("Good, you can do better!");

        }   

        if(num1 < 100)

        {

        Console.WriteLine("Sorry, you are not good at bowling.");   

        }   

        if(num1 > 300)

        {

        Console.WriteLine("That’s impossible, please start again.");    

        }   

    }

}