using System;

namespace Coding
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());
            string lenght = n.ToString();
            int number = n % 10;
            for (int i = 1; i <=lenght.Length; i++)
            {
                    if (number == 0)
                    {
                        Console.Write("ZERO");
                    }
                    else
                    {
                for (int j = 1; j <=number; j++)
                {
                        Console.Write((char)(number + 33));
                }
                    }
                Console.WriteLine();
                number = (n / 10) % 10;
                n = n / 10;

            }
        }
    }
}