using System;

​

public class SpeedCategory

{

    public static string GetSpeedCategory(int speed)

    {

        if (speed <= 10)

        {

            return "Slow";

        }

        else if (speed <= 50)

        {

            return "Average";

        }

        else if (speed <= 150)

        {

            return "Fast";

        }

        else if (speed <= 1000)

        {

            return "Ultra Fast";

        }

        else

        {

            return "Speed exceeds maximum limit.";

        }

    }

​

    public static void Main()

    {

        Console.WriteLine("Enter speed:");

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

        string category = GetSpeedCategory(speed);

        Console.WriteLine(string.Format("The speed is: {0}", category));

    }

}

​