StarSprangledBanner_Draw

int input = int.Parse(Console.ReadLine());// 6
            int width = ((input * 2) + (input * 6 - 2)) + 1; // (input * 2) + (input * input) - 2

            for (int i = 1; i <= input + 3; i++)
            {
                if (i % 2 != 0)
                {
                    for (int j = 1; j <= input; j++)
                    {
                        Console.Write("{0} ", '*');
                    }
                    Console.Write("{0}{1}", ' ', new string('=', input * 6 - 2));
                }
                else
                {
                    for (int j = 1; j <= input - 1; j++)
                    {
                        Console.Write(" *");
                    }
                    Console.Write("{0}{0}{0}{1}", " ", new string('=', input * 6 - 2));
                }
                Console.WriteLine();
            }

            for (int i = 1; i <= input; i++)
            {
                Console.WriteLine("{0}", new string('=', width));
            }