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