          2.4  1  8.1

(   1.6.13.3  ) 

 .
1.     1  8.1
2.         2.4
3.    
	  
	     1     
	      1
	     2.4            1  8.1
	       1  8.1


!!!!           2.4  
1-    8.1           .
   1-   8.1         , , . 


           .