using System;
using System.Linq;

namespace test20190423
{
    class Program
    {
        static void Main(string[] args)
        {
            var ss = Console.ReadLine().Split(new String[] { " " }, StringSplitOptions.RemoveEmptyEntries).Select(x => int.Parse(x)).ToArray();
            Console.WriteLine(ss[0] / ss[1] + 1);
        }
    }
}