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