????? ????? ??? ????? ???, ???? ?????? ??? ???? ??????????(?BA)? ????? ????? ??? ????, ????, ???? 3??? ????.

?1??: ????(6-7?). ? ?? ????? ???? ???? ???? ????? ????? ???? ????? ??? ???? ??? ??? ?? ???. ???? ??? ??? ? ????? ???? ???? ??, ??? ???? ? ????? ???? ????? ???? ???? ???? ??? ??? ??? ?? ????. ?? ?? ??? ?? ?? ?? ??? ???? ??? ???? ???.

?2??: ????(8-9?). ? ?? ??(?)? ??? 2? ???? ?? ????? ??? ????? ????. ??? ??, ??, ??, ??? 4? ???? ???? ????? ?? ??? ??? ????. ? ????? ??? ?? ?3?? ???? ????.

3??: ???(10?). ??? ????? ?1? ??????????(?BA) ???? ????? ????.