01.Debit Card Number

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace _01.BasicSyntaxDemo
{
    class Program
    {
        static void Main(string[] args)
        {
            var firstNum = int.Parse(Console.ReadLine());
            var secondNum = int.Parse(Console.ReadLine());
            var thirdNum = int.Parse(Console.ReadLine());
            var fourthNum = int.Parse(Console.ReadLine());
            Console.WriteLine("{0:D4} {1:D4} {2:D4} {3:D4}", firstNum, secondNum, thirdNum,fourthNum);
        }
    }
}