using System;

namespace Sierpinsky_Carpet
{
    class Program
    {
        private bool[,] bits;

        public static void Main()
        {
            int level = int.Parse(Console.ReadLine());
            Program p = new Program();
            p.PrintSierpinskiCarpet(level);
            p.Dump();
        }

        void PrintSierpinskiCarpet(int level)
        {
            int size = (int)(Math.Pow(3, level));
            bits = new bool[size, size];
            PrintSierpinskiCarpet(level, 0, 0);
        }

        void PrintSierpinskiCarpet(int level, int x, int y)
        {
            if (level == 0)
                bits[x, y] = true;
            else
                for (int i = 0; i < 9; i++)
                    if (i != 4)
                        PrintSierpinskiCarpet(level - 1, x * 3 + (i % 3), y * 3 + (i / 3));
        }

        private void Dump()
        {
            int len = bits.GetUpperBound(0);
            for (int x = 0; x <= len; x++)
            {
                for (int y = 0; y <= len; y++)
                    Dot(bits[x, y]);
                Console.WriteLine();
            }
        }

        static void Dot(bool fill)
        {
            if (fill)
                Console.Write("::");
            else
                Console.Write("  ");
        }
    }
}