0 0 0 0 0 0 0 0 00 1 1 0 0 0 1 1 00 1 1 0 0 0 0 1 00 0 0 0 1 1 1 0 00 0 1 1 1 1 1 1 00 1 1 0 0 0 1 1 00 0 1 1 1 1 1 1 00 0 0 1 1 1 1 0 00 0 0 0 0 0 0 0 0
(b)
(a)
(a)(b)