to box_row (n)
 repeat n ( box_move () )
end

to box_move ()
 box (3,2,1)
 forward (3) 
end
 

 
to box_move ()
 box (3,2,1)
 forward (3)
  right (10) 
end
 

 
to box_move ()
 box (3,2,1)
 forward (3)
  right (20)
  pitch (20) 
end