RhombusOFStars

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

namespace RhombusOfStars
{
    class RhombusOFStars
    {
        static void Main()
        {
            int n = int.Parse(Console.ReadLine());
            for (int row = 0; row < n; row++)
            {
                Console.Write(new string(' ', n - row - 1));
                for (int col = 0; col <=row; col++)
                {
                    Console.Write("* ");
                }
                Console.WriteLine();
            }
            for (int row = n-2; row >=0; row--)
            {
                Console.Write(new string(' ', n - row - 1));
                for (int col = 0; col <= row; col++)
                {
                    Console.Write("* ");
                }
                Console.WriteLine();
            }
        }
    }
}