1 // input: [["a", "b", "c", "d"]]
 
   2 // output: ["c", "b", "a", "d"]
 
   5 public class ArrayAccess {
 
   6     public static function main(ar:Array):Array {
 
   7         var aa:ArrayAccess = new ArrayAccess();
 
  11     private function f(ar:Array, num:Number):Array{
 
  13         var y:String = ar[num % ar.length];