using System;

using System.Globalization;                 

public class Program

{

    public static void Main()

    {

        int x; // Distancia pecorrida (km);

        double y; // Combustivel gasto (l);

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

        y = double.Parse(Console.ReadLine(), CultureInfo.InvariantCulture);

        double z = x / y; 

        Console.WriteLine(z.ToString("F3", CultureInfo.InvariantCulture) + " km/l");

    }

}