using System;

public class Program

{

    public static void Main()

    {

        int y = int.Parse(Console.ReadLine());

        int a = y % 19;

        int b = y / 100;

        int c = y % 100;

        int d = b / 4;

        int e = b % 4;

        int g = (8 * b + 13) / 25;

        int h = (19 * a + b - d - g + 15) % 30;

        int j = c / 4;

        int k = c % 4;

        int m = (a + (11 * h)) / 319;

        int r = ((2 * e) + (2 * j) - k - h + m + 32) % 7;

        int n = (h - m + r + 90) / 25;

        int p = (h - m + r + n + 19) % 32;

        Console.WriteLine(p + "." + n + "." + y);

    }

}