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)