8 5 1 1 1 1 1 0 0 0 0 1 1 1 1 0 1 1 0 0 0 1 1 0 0 1 1 1 0 0 0 1 1 1 1 0 1 1 0 0 0 1 2 1 8 4
(2,1)->(2,2)->(2,3)->(2,4)->(3,4)->(4,4)->(4,3)->(5,3)->(6,3)->(6,4)->(7,4)->(8,4)