︾ ( 11| 12 ) ︽ | ︽ ︾ 1981 ︽ · 3.1 - 4
1204 ︾ ︽ 3.1 - 3
︽ ︾ 3.1 - 2
︾ ( ) ︽ ︽ ︾ | ︾ ) ︾ ( ︽ ︽ 3.1 -1 ( 1182 -1251 ) 3 ·1
|