namespace haidle

{

    using System;

    using System.Collections.Generic;

    using System.Linq;

​

    public static class Program

    {

        public static void Main()

        {

            byte[] data = new byte[] { 87, 82, 69, 67, 75, 69, 68 };

​

            int row = 0;

            data.Do(c1 =>

            {

                Console.Write((char)c1);

                int col = 1;

                data.Skip(1).Do(c2 =>

                {

                    Console.Write((row == 0 || col == row) ? (char)c2 : ' ');

                    col++;

                });

​

                Console.WriteLine();

                row++;

            });

        }

​

        public static void Do<T>(this IEnumerable<T> data, Action<T> fn)

        {

            foreach (T item in data)

                fn(item);

        }

    }

}

​