using System;
using System.Linq;

namespace prob388
{
    class Program
    {
        static void Main(string[] args)
        {
            int[] a = Console.ReadLine().Split(' ').Select(int.Parse).ToArray();
            if (a[0] % a[1] == 0)
            {
                Console.WriteLine(a[0] / a[1]);
            }
            else
            {
                Console.WriteLine(Math.Ceiling((double)a[0] / (double)a[1]));
            }
        }
    }
}