int numberRows;
            numberRows = int.Parse(Console.ReadLine());


            switch (numberRows)
            {
                case 1:
                    Console.WriteLine(" 1 ");
                    break;
                case 2:
                    Console.WriteLine("  1  ");
                    Console.WriteLine(" 2 2 ");
                    break;
                case 3:
                    Console.WriteLine("   1   ");
                    Console.WriteLine("  2 2  ");
                    Console.WriteLine(" 3 3 3 ");
                    break;
                case 4:
                    Console.WriteLine("    1    ");
                    Console.WriteLine("   2 2   ");
                    Console.WriteLine("  3 3 3  ");
                    Console.WriteLine(" 4 4 4 4 ");
                    break;
                case 5:
                    Console.WriteLine("     1     ");
                    Console.WriteLine("    2 2    ");
                    Console.WriteLine("   3 3 3   ");
                    Console.WriteLine("  4 4 4 4  ");
                    Console.WriteLine(" 5 5 5 5 5");
                    break;
                default:
                    Console.WriteLine("Max number of inputs is 5. Sorry!");
                    break;
            }