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

namespace _1385
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Введите число");
            int numb = Convert.ToInt32(Console.ReadLine());

            DrawPyramid(numb);
            Console.ReadKey();
        }

        static void DrawPyramid(int numb)
        {
            {
                for (int i = 0; i < numb; i++)
                {
                    for (int j = 0; j < numb; j++)
                    {
                        int per1 = Math.Min(numb - i, numb - j);
                        int per2= Math.Min(i + 1, j + 1);
                        Console.Write(Math.Min(per1, per2));
                    }
                    Console.WriteLine();
                }
            }

        }
    }
}