using System;

public class Program
{
    public static void Main()
    {

        string word = String.Empty;
        for (int count = 1; count <= 4; count++)
        {
            string number = Console.ReadLine();

            if (4 - number.Length == 4)
            {
                word += "0000 ";
            }
            else if (4 - number.Length == 3)
            {
                word += "000" + number + " ";
            }
            else if (4 - number.Length == 2)
            {
                word += "00" + number + " ";
            }
            else if (4 - number.Length == 1)
            {
                word += "0" + number + " ";
            }
            else if (4 - number.Length == 0)
            {
                word += number + " ";
            }
        }
        Console.WriteLine(word);
    }
}