using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("hello,what is your name?");

        string name = Console.ReadLine ();

        Console.WriteLine("in what your did you born?");

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

        Console.WriteLine("in what month did you born");

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

        Console.WriteLine("in what day did you born");

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

        Console.WriteLine(name +  "is"+  ( 30 - Bday)+ "/"  + (12- Bmonth) + "/" +(2020- Byear)+ "years old");

    }

}