03. Speed Info

using System;

namespace _03.SpeedInfo
{
    class Program
    {
        static void Main(string[] args)
        {
            //1. скорост
            //2. проверки за скоростта
            // до 10 -> slow
            // до 50 -> average
            // до 150 -> fast
            // до 1000 -> ultra fast
            // над 1000 -> extremely fast
            double speed = double.Parse(Console.ReadLine());

            if (speed <= 10)
            {
                Console.WriteLine("slow");
            }
            else if (speed <= 50)
            {
                Console.WriteLine("average");
            }
            else if (speed <= 150)
            {
                Console.WriteLine("fast");
            }
            else if (speed <= 1000)
            {
                Console.WriteLine("ultra fast");
            }
            else
            {
                Console.WriteLine("extremely fast");
            }


        }
    }
}