; DividedBoxes - Psuedocode's Walkthrough Program 
; ------------ 
; draw a square 
fd 120 rt 90 fd 120 rt 90 fd 120 rt 90 fd 120
; draw the vertical line that splits the square in half 
bk 60 rt 90 fd 120
; draw the top horizontal line spliting the right half 
bk 40 rt 90 fd 60 bk 60 lt 90
; draw the bottom horizontal line spliting the right half 
bk 40 rt 90 fd 60
; make the turtle invisible 
ht