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