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

namespace yukicoderTest
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] input = Console.ReadLine().Split(' ');
            int now = int.Parse(input[0]);
            int kaisou = int.Parse(input[1]);
            int kai = 1;
            int ans = kai + (now / kaisou);
            Console.WriteLine(ans);
        }

    }
}