using System;

public class Program

{

    public static void Main()

    {

        var multiDimStrings = new[] {

            new[] {"Oh", "the", "grand", "old", "Duke", "of", "York"},                             

            new[] {"he", "had", "ten", "thousand", "men"},

            new[] {"he", "marched", "them", "up", "to", "the", "top", "of", "the", "hill"},

            new[] {"and", "now", "I'm", "tired", "of", "writing", "this", "all", "out"}

        };

​

        foreach(var line in multiDimStrings) {

            foreach(var word in line) {

                Console.Write(word + " ");

            }

            Console.WriteLine();

        }

​

        Console.WriteLine(multiDimStrings.GetType());

        Console.WriteLine(multiDimStrings[1][3]);

    }

}