static int z;
        static void print(int x)
        {
            if (x != 0) print(x / 10);
            else return;
            z = x % 10;
            Console.Write(z);
        }
        static void Main(string[] args)
        {
            int x;
            x = int.Parse(Console.ReadLine());
            Console.WriteLine();
            print(x);
        }