using System;

public class Program

{

    public static void Main()

    {

        int input =4;

        for (int i=1;i<=input*2-1;i++) {

            int val = Math.Abs(input - i)+1;

            for (int j=1;j<=input*2-1;j++) {

                int val2 = Math.Abs(input - j) +1;

                if (val>val2) {

                    val2 = val; 

                }

                Console.Write(val2);

            }

            Console.WriteLine();

        }

    }

}