Find the last line by making 
use of the puzzle's title (4x2=8 
			
			
			ó 5x5) and enter the answer which 
is a number.
Example of Answering Format : 
If the last line would be “XXXYXYYXXXXYXYYXYYXYXYYYX”, 
the answer would be "1".
(3-1+1-2+4-1+1-2+1-2+1-1+1-3+1 =
1)