(280)
(280)
2
.
-1
.
-2 .
-3 -4
. .
-6
.
-7
.
.1
.
.2 .
.3
.
.4 .
.5
.2/2/
.1
.
.2 . .
3
-5
.3 .4
.
.5
.
.6 .
.7
: :
1 -1 -2
.
-3
.
-4 -5 .
-6
.
-7
: .
2 -1
.
-2 .
-3
.
-4 . .
-5 -6
3 .
-1 -2 -3
4
5
................................................................................ : ..............................................
.............................. 142 ................................ ............................. ........................................ ..................................... ....................................: .1 .2 .3 .4 .5 :
.1 .2 .3 .4
(280)
6
7
:
1 8
2 3
-1 -2 -3 -4 -1 -2 -3 -4 -1 -2 ..............:
9
. . .
(1 (2 (3 (4 (5 (6
10
.
. . . . .
........................................... : .............................................. 142 ............... :
.................................................................................................................. ................................................................................................................. .............................................................................................................. .................................................................................................................. ................................................................................................................... ................................................................................................................... ...................................................................................................................
.1 .2 .3 .4 .5 .6 .7
:
11
................................................................................................................... ................................................................................................................... ................................................................................................................... ................................................................................................................... ................................................................................................................... ................................................................................................................... ...................................................................................................................
12
.1 .2 .3 .4 .5 .6 .7
13