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

public class yukicoder
{
    public static void Main()
    {
        decimal w = decimal.Parse(Console.ReadLine().Trim());
        decimal d = decimal.Parse(Console.ReadLine().Trim());

        while(true)
        {
            if(d == 1)
                break;
            
            w = w - Math.Floor(w / (d * d));
            d--;
        }
        
        Console.WriteLine(w);
    }
}