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

class Program
{
    static void Main(string[] args)
    {
        long s = long.Parse(Console.ReadLine());
        long d = long.Parse(Console.ReadLine());

        for (long i = d; i > 1; i--)
        {
            if (s < 0)
            {
                break;
            }

            s = s - (s / (i * i));
        }

        Console.WriteLine(s);
        Console.Read();
    }
}