var n = int.Parse(Console.ReadLine());
            for (int row = 1; row < n; row++)
            {
                for (int space = 1; space <= n - row; space++)
                {
                    Console.Write(" ");
                }
                for (int star = 1; star < row*2; star++)
                {
                    Console.Write("*");
                }
                Console.WriteLine();
            }