03. Speed Info

using System;

namespace demo
{
    class Program
    {
        static void Main(string[] args)
        {
            //1. прочетем скорост
            //2. проверки
            //2.1 до 10 вкл slow
            //2.2 до 50 average
            //2.3 до 150 fast
            //2.4 до 1000 ultra fast
            //2.5 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");
            }





        }
    }
}