6
4
.
.
2.
2.1
2.2
2.
2
2
2
2
4
2.
.
.
.
.
. .
.
.
.
.
.
2
.
.
.1
1
2
6
7
-
-
2
2
-
-
-
1
.
-
1
-
1
1
11
.
.1
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1
2
2
6
7
1
11
.1.2
1
2
6
7
1
11
12
1
.2
.
6
.
_____________________________________________________________________________________________________________________
- 50 -
.
1
. 1
2
. 2
.
.
.
.
2
1
.1
.