,
1
...
6
7
8
9
10
11
12
13
14
15
16
17
18
...
20
() ( )
()
,
() -
_ , 1, 2; 9519, 9520_
7 -
14, , ( 2)
(2) ( )
1
...
6
7
8
9
10
11
12
13
14
15
16
17
18
...
20
