???? ?????? ???? ???? ???????? ????? ???? ???? ??? ????, ???? ?? ?????? ??? ???? ????. ??? ??? ???? ???? ?? ??? ???? ?? ???? ????? ??? ????? ???. ??? 1: ??? ??? ???? ??? ? ???? ????? ???? ??? ???. ??? 2: ??? ??? ??? ? {??????? ??????? ?? ????, ?? ???? ???? ???? ???? ??? ????? ???? ???? ???. ??? 3: ??? ??? ??? ???? ???? ? ???? ????