????? ?????? ????? ?????? ??? ???? ?????????? ???? ??? ????????? ???? ?????? ???? ???????? ??????? ??????? ??? ????? ???, ???? ???? ??????????? ????? ????? ?????? ??????? ????? ?????? ???????? ?????? ??????? ????????????? ??????? ???? ?????? ??? ????? ????? ?????? ????? ?????-??????? mobil phone is a very useful tool in today's world. ??