using System;

public class Program
{
    public static void Main(string[] args)
    {
        var input = Console.ReadLine();
        if (input == null) return;

        var inputNum = input.Split(' ');
        var s = int.Parse(inputNum[0]);
        var f = int.Parse(inputNum[1]);

        Console.WriteLine(s / f + 1);
    }
}