using System;
 
public class Frase
{
	string[] palabras = "GitHub Gist permite crear fragmentos de código de forma eficiente.".Split();
 
	public string this [int indicePalabra]		// indizador
	{
		get
		{
			return palabras[indicePalabra];
		}
		set
		{
			palabras[indicePalabra] = value;
		}
	}
 
	public static void Main()
	{
		Frase f = new Frase();
		Console.WriteLine (f[1]);		// Gist
		f[9] = "rápida";
		Console.WriteLine (f[9]);		// rápida
	}
}

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