using System;

namespace yukicoder2
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] input = Console.ReadLine().Split(" ");
            double S = double.Parse(input[0]);
            double F=  double.Parse(input[1]);
            double A = S / F;
            double ANS = Math.Floor(A);
            ANS++;
            Console.WriteLine(ANS);

        }
    }
}