[
[(2, 4), (6,8)],
[(22, 24), (26,28)]
];
[
[(10,12), (14,16)],
[(30,32), (34,36)]
];
[
[(18,20)],
[(38,40)]
];

[
[(42, 44), (46,48)],
[(62, 64), (66,68)]
];
[
[(50,52), (54,56)],
[(70,72), (74,76)]
];
[
[(58,60)],
[(78,80)]
];

[
[(82,84), (86,88)]
];
[
[(90,92), (94,96)]
];
[
[(98,100)]
]
