using System;

public class Program

{

    public static void Main()

    {

        var N = 10011;

        int reverse = 0;

        int enable_print = N % 10;

        while (N > 0) {

            if (enable_print == 0 || enable_print != 0) 

            {

                reverse = reverse * 10 + N % 10;

                Console.WriteLine(reverse);

            }

            else if (enable_print == 1) {

                Console.WriteLine(N % 10);

            }

            N = N / 10;

        }

    }

}