using System; class Foo { } class Test { static void Hello (Foo[] foo, int i) { Foo element = foo [0]; Console.WriteLine (element); if (i > 0) Hello (foo, i - 1); } public static void Quicksort (Foo[] arr) { Hello (arr, 1); } public static void Main () { Foo[] foo = new Foo [1]; foo [0] = new Foo (); Quicksort (foo); } }