( )
..
...
..
.. ..
.
.. ...
..
..
....
....
............................................
():
1_ () .
2_ .( )
3_ .
( )
1_ ( ) .
2_ .
3_
4_ 5_ .
()
1_ .
2_ .
:
():
1_ () .
2_ .
3_ .
4_ .
5_ .
():
1_ .
2_ .
3_ () .
4_ ( )..
..........................................
. .
.
.
.
* .
.
.
1_ .
2_ ( ) . ..
3_ .
4_ .
.
::::::::::::::::::::::::::::::::
* .
. .. . ..
.................................
..
1_ ...
2_ .
3_ .
4_ , . ..
5_ ( )...
. ..
.