using System;

class Program
{

    static void Main()
    {
        string n = (Console.ReadLine());

        string[] strs = n.Split(" ");

        int S = int.Parse(strs[0]);
        int F = int.Parse(strs[1]);

        if(S / F < 1)
        {
            Console.Write("{0}", 1);
        }else
        {
            Console.Write("{0}", S / F + 1);
        }
    }
}