{??????????? ?? ?????????????????? ?????????? ???????????? ???????????? ??????? ???????? ??? ??????????? ?????? ??????? ??????????? ??? ??????? ?????? ???? ??????? ???????? ?? ????????? ????? ???????????????? ???????????? ?????? {??????????? ??????? ???? ?????? ??? ??????????? ????????????????? ?????????, ?????????? ??????? ?????? present ??? offe