- 5


.

 

 

 

 

 

 

 

 

 

 


- , :

 

껠 '

screen 2,0

(130,40)-( 100,100), line (150,40)-(100,100),8

(130,40)-(200,100), line (150,40)-(200,100),8

(100,100)-(200,200), line (100,100)-(200,200),15,b

(130,120)-(170,160), line (130,120)-(170,160),3,b

end

 

­ :

 

 

 

 

 

 

 

 

 

 


, , - ­ , - , .

:

 

'

ls

( =, d) input =, d

( =, r) input =, r

:

= d - r = d - r

( =, ) print =,

end