using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;
using System.Globalization;

class Program
{
    static int NN => int.Parse(ReadLine());
    static long[] NList => ReadLine().Split().Select(long.Parse).ToArray();

    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var c = NList;
        var (a, b) = (c[0], c[1]);
        if (b < 0) (a, b) = (-a, -b);
        var ans = new List<char>();
        if (a < 0)
        {
            ans.Add('-');
            a = -a;
        }
        ans.AddRange((a / b).ToString().ToCharArray());
        a = a % b * 10;
        if (a > 0)
        {
            ans.Add('.');
            var mul = new long[11];
            mul[1] = b;
            for (var i = 2; i < mul.Length; ++i) mul[i] = mul[i - 1] + b;
            while (a != 0)
            {
                for (var i = 0; i < 10; ++i)
                {
                    if (a < mul[i + 1])
                    {
                        ans.Add((char)('0' + i));
                        a = (a - mul[i]) * 10;
                        break;
                    }
                }
                if (ans.Count > 30) break;
            }
        }
        WriteLine(string.Concat(ans));
    }
}