  c -       (mkr  com)      ca    (  )        (softs)        ( ,  )                ( )      -         -          -   c –       (mkr  com).   173.                           -     (    )   / 357( )   ( 359( )  ) -     (    )   357( )      a                      (b)  92( )                       (c)( )  92( )          -      361   359   361   360   -      ( )  358( )        