using System;

namespace StudyApp
{
    class Program
    {
        static void Main(string[] args)
        {
            int totalWork = int.Parse(Console.ReadLine());
            long days = int.Parse(Console.ReadLine());
            int work = 0;

            while (totalWork > 0)
            {
                work = (int)(totalWork / (days * days));
                totalWork -= work;
                days--;
            }

            Console.WriteLine(work);
        }
    }
}