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

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            int n = 11;
            for (int i = 0; i <= 3; i++)
            {
               
                for (int j = 0; j <= i; j++)
                {
                    Console.Write(n%10);
                    n += 1;
                }

                Console.WriteLine("");
            }

        }
    }
}