length = 16

1, 13, 12, 15
11, 14, 7, 8
2, 3, 4, 5
6, 0, 9, 10

1, 13, 12, 15
11, 14, 7, 8
2, 3, 4, 0
6, 5, 9, 10

1, 13, 12, 15
11, 0, 7, 8
2, 3, 4, 14
6, 5, 9, 10

1, 13, 12, 0
11, 15, 7, 8
2, 3, 4, 14
6, 5, 9, 10

1, 13, 12, 4
11, 15, 7, 8
2, 3, 0, 14
6, 5, 9, 10

1, 0, 12, 4
11, 15, 7, 8
2, 3, 13, 14
6, 5, 9, 10

1, 2, 12, 4
11, 15, 7, 8
0, 3, 13, 14
6, 5, 9, 10

1, 2, 12, 4
11, 15, 7, 8
9, 3, 13, 14
6, 5, 0, 10

1, 2, 12, 4
11, 0, 7, 8
9, 3, 13, 14
6, 5, 15, 10

1, 2, 12, 4
11, 6, 7, 8
9, 3, 13, 14
0, 5, 15, 10

1, 2, 12, 4
11, 6, 7, 8
9, 3, 0, 14
13, 5, 15, 10

1, 2, 12, 4
0, 6, 7, 8
9, 3, 11, 14
13, 5, 15, 10

1, 2, 12, 4
5, 6, 7, 8
9, 3, 11, 14
13, 0, 15, 10

1, 2, 12, 4
5, 6, 7, 8
9, 3, 11, 0
13, 14, 15, 10

1, 2, 0, 4
5, 6, 7, 8
9, 3, 11, 12
13, 14, 15, 10

1, 2, 3, 4
5, 6, 7, 8
9, 0, 11, 12
13, 14, 15, 10

1, 2, 3, 4
5, 6, 7, 8
9, 10, 11, 12
13, 14, 15, 0