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

namespace _13_Number_Pyramid
{
    class Program
    {
        static void Main(string[] args)
        {
            var n = int.Parse(Console.ReadLine());

            var num = 1;

            for (var row = 1; row <= n; row++)
            {
                for (var col = 1; col <= row; col++)
                {
                    if (col >= 1)
                        Console.Write(num);
                    num++;
                    if (num > n) break;

                }


                Console.WriteLine();
                if (num > n) break;


            }


            // пример 2 :


         /*   var n = int.Parse(Console.ReadLine());

            var num = 1;

            for (var row = 1; row <= n; row++)
            {
                for (var col = 1; col <= row; col++)
                {
                    if (col >= 1)
                        Console.Write(" " + num);
                    num++;
                    if (num > n) break;

                }


                Console.WriteLine();
                if (num > n) break;


            }
                    //   край на пример 2        */
    }
}
}