using System.Numerics;
using System;

public class Hello
{
    public static BigInteger k = 10000000000;
    static void Main()
    {
        string[] line = Console.ReadLine().Trim().Split(' ');
        var a = BigInteger.Parse(line[0]);
        var b = BigInteger.Parse(line[1]);
        getAns(a, b);
   }
    static void getAns (BigInteger a, BigInteger b)
    {
        BigInteger k5 = k * k * k * k * k;
        var c = (a / b).ToString() + ".";
        BigInteger d = (a % b) *k5 / b;
        var ds = d.ToString();
        var L = 50 - ds.Length;
        var ans = c + d.ToString() + new string('0', L);
        Console.WriteLine(ans);
    }
}