? , , , .
- .
1 ( ):
3 , 3 3 2 , * 2 , 2 7 .*- .
2 7, 4 ( ).
2 ( ):
, 3 ,
: 7 , 4 ( 3 ) , 3 7 ,
3 7 . .
3 ( ):
, , *7 , 7 , 4, , 7 * - , .
4 ( ):
3 , 3 , 3 7 ,
3 , 4 7 , 3 , 7 , 4 ( 3 ) , 3 7 ,
3 7 , 4 .
5 ( ) :
.
http://uroki-vjazanija.blogspot.com/2011/04/kak-svjazat-krjuchkom-uzor.html
