using System;

public class Program

{

    public static void Main()

    {

        int i;

        int j;

        int k;

        int n = 6;

        for (i = 1; i <= n; i++)

        {

            for (j = 1; j <= i; ++j)

                Console.Write(j);

​

            for (k = 9 - i; k >= 1; k--)

                Console.Write("*");

​

        Console.Write("\n");

        }

        Console.ReadLine();

        Console.WriteLine("Hello World");

    }

}