using System;

public class Program

{

    public static void Main()

    {

        double s; 

        Console.WriteLine("Hey, What's your score?");

        s = double.Parse(Console.ReadLine());

​

        //IF

        if (s == 300 )

​

        {

        Console.WriteLine( "Perfect score!" );

        }

        else if (s >= 200 && s < 300) 

        {

        Console.WriteLine( "Great score!" );

        }

        else if (s >= 100 && s < 300) 

        {

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

        }

        else if (s < 100) 

        {

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

        }

        else if (s > 300) 

        {

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

        }

​

​

​

    }

}

​