17 ( )
* 1/5 6/5
* 12/5 21/5
:
(30 ) 45
:-
_
_
_ 50 100
_
( , , , )
....
17 ( )
* 1/5 6/5
* 12/5 21/5
:
(30 ) 45
:-
_
_
_ 50 100
_
( , , , )
....
.....
...
...
...
...