using System;
using System.Collections.Generic;
using System.Linq;

    class Program
    {
        static void Main(string[] args)
        {
           var list = Console.ReadLine().Split(' ').Select(x => int.Parse(x)).ToList();
           var s = list[0];
           var f = list[1];
           Console.WriteLine((s/f)+1);
        }
    }