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

public class Program{
  public static void Main(){
    string[] input = Console.ReadLine().Trim().Split(' ');
    int S = int.Parse(input[0]);
    int F = int.Parse(input[1]);
    Console.WriteLine((S / F) + 1);
  }
}