?????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4??????????4???