using System;

namespace ConsoleApp2
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] ss = Console.ReadLine().Split(' ');
            int s = int.Parse(ss[0]);
            double f = double.Parse(ss[1]);
            double r = Math.Ceiling(s / f);

            Console.Write(r);
        }
    }
}