(1,1,3),(2,1,4),(4,1,8),(6,1,1),(7,1,7),
(5,2,7),
(1,3,1),(2,3,7),(5,3,5),(6,3,6),(9,3,8),
(3,4,4),(9,4,2),
(3,5,6),(7,5,1),
(1,6,8),(7,6,4),
(1,7,7),(5,7,4),(8,7,8),(9,7,5),(4,7,2),
(5,8,6),
(3,9,9),(4,9,5),(6,9,3),(8,9,7),(9,9,4)