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