???? ??? ?? ??? ??? ??? ??? ??? ??? ??? ??? ???? ??? ??? ??? ??? ?? ??? ??? ??? ??? ??? ???? ???? ??? ??? ??? ???? ??? ??? ????? ???? ??? ???? ???? ??? ???? ??? ??? ??? ??? ???????????? ??? ???? ??? ??? ??? ??? ????? ?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????