 
 		keys.removeAllObjects()
 
-		iterator.enumerateKeysWithPrefix("101", usingBlock: { (key, stop) -> Void in
+		iterator.enumerateKeysWithPrefix("42", usingBlock: { (key, stop) -> Void in
 			keys.addObject(key)
 		})
 

		let iterator = rocks.iterator()
		let keys = NSMutableArray()

		iterator.enumerateKeysWithPrefix("100", usingBlock: { (key, stop) -> Void in
			keys.addObject(key)
		})



		keys.removeAllObjects()

		iterator.enumerateKeysWithPrefix("53", usingBlock: { (key, stop) -> Void in
			keys.addObject(key)
		})

