1:
[{1, 2, 3}, {4, 5, 6}, {8, 9, 7}]
[{1, 4, 7}, {8, 2, 5}, {9, 3, 6}]
[{1, 5, 9}, {2, 4, 10}, {11, 3, 7}]
[{8, 1, 6}, {2, 12, 7}, {3, 4, 13}]
[{1, 10, 11}, {2, 13, 6}, {3, 12, 5}]
[{1, 12, 13}, {9, 2, 11}, {8, 10, 3}]
[{1, 14, 15}, {8, 11, 4}, {10, 5, 7}]
[{9, 4, 12}, {11, 5, 13}, {14, 6, 7}]
[{11, 12, 6}, {15, 13, 7}, {9, 10, 14}]