using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace No388
{
    public class Program
    {
        public static void Main(string[] args)
        {
            int[] inputs = Console.ReadLine().Split().Select(int.Parse).ToArray();
            double S = inputs[0];
            double F = inputs[1];

            Console.WriteLine(Math.Floor(S/F)+1);
        }
    }
}