using System;
using System.Collections.Generic;
using static System.Console;
namespace ConsoleApp
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] N = ReadLine().Split(' ');
            long A = long.Parse(N[0]);
            long B = long.Parse(N[1]);
            string s = ((long)A / B).ToString("F50");
            WriteLine(s);
        }
    }
}