Converter

using System;

namespace _09_Converter
{
    class Program
    {
        static void Main(string[] args)
        {
            int milesPerGalon = int.Parse(Console.ReadLine());


            if (1 <= milesPerGalon && milesPerGalon <= 100)
            {

                double km = (milesPerGalon * 1.0);
                double perHundred = Math.Floor(282.48 / km);
                Console.WriteLine($"{perHundred} litres per 100 km");
            }

        }
    }
}