????
???? ????? ??.
[?]
( ), [ ] ??? { }.
?.
??? ???? ?????? ???? ? ???? ??? ??? ? ??????? ????? ??. ?????,
- ??? (????) ??? ???? (?????) ?? ???????? ?????? ? ?????? ???? ??? ??.
?.
???? ???? ???? ?? ?????? ??????? ?????? ?? ????? ?????? ??????? ????? ??. ?????,
- (?) ???????? --- [?] ????????
- (?) ?????????? --- [?] ??????????
- ↑
?????????, ??.??.; ?????, ??????? (????).
??? ??????? ???????
(? ???????). ??.????????? ?????. ????? ???.
