[
[ (11),  (12),  (13)],
[ (21),  (22),  (23)],
[ (31),  (32),  (33)]
];
[
[(14),  (15),  (16) ],
[(24),  (25),  (26) ],
[(34),  (35),  (36) ]
];
[
[ (41),  (42),  (43) ],
[ (51),  (52),  (53) ],
[ (61),  (62),  (63) ]
]
;
[
[ (44),  (45),  (46) ],
[ (54),  (55),  (56) ],
[ (64),  (65),  (66) ]
]
