using System;

public class Test
{
	public static void Main()
	{
		var myString = String
		    .Format(
		        "hello " + 
		        "world" +
		        " i am {0}" +
		        " and I like {1}",
		        "a pony",
		        "other ponies"
		    );
		
		Console.WriteLine(myString);
		    
	}
}