using System;

namespace _06.RhombusOfStars
{
    class RhombusOfStars
    {
        static void Main(string[] args)
        {
            int n = int.Parse(Console.ReadLine());

            int columnCount = 1;
            for (int row = 0; row < n - 1; row++)
            {
                Console.Write(new string(' ', n - columnCount));

                for (int col = 0; col < columnCount; col++)
                {
                    Console.Write("* ");
                }

                Console.WriteLine();
                columnCount++;
            }

            for (int col = 0; col < n; col++)
            {
                Console.Write("* ");
            }
            Console.WriteLine();

            columnCount = n - 1;
            for (int row = 0; row < n - 1; row++)
            {
                Console.Write(new string(' ', n - columnCount));

                for (int col = 0; col < columnCount; col++)
                {
                    Console.Write("* ");
                }

                Console.WriteLine();
                columnCount--;
            }

        }
    }
}