-


1. 2.
3.
4.



1. , . 2. 2 . 3. .

      - ( )
      ( ) 1. 2. 3. 4. 5. ...

      SRS ( )
      SRS ( ) (SRI) ( ) (SRI) SRS . 6 , ...

      - 3
      "N" "D", "3", "2" ...