[[1, 2, 3, 4], [1, 2, 4, 3], [1, 3, 2, 4], [1, 3, 4, 2], [1, 4, 2, 3], [1, 4, 3, 2]]
[[1, 2, 3, 4], [1, 2, 4, 3], [1, 3, 2, 4], [1, 3, 4, 2], [1, 4, 2, 3]]
5
[[1, 2, 4, 3], [1, 3, 2, 4], [1, 3, 4, 2], [1, 4, 2, 3], [1, 4, 3, 2]]
5
[1, 2, 4, 3] has 213 3 1 4
[1, 2, 4, 3] has 213 3 2 4
[1, 3, 2, 4] has 213 3 2 4
[1, 3, 2, 4] has 213 2 1 3
[1, 3, 4, 2] has 213 2 1 3
[1, 3, 4, 2] has 213 2 1 4
[1, 4, 2, 3] has 213 2 1 4
[1, 4, 2, 3] has 213 3 1 4
[1, 4, 3, 2] has 213 3 2 4
[1, 4, 3, 2] has 213 3 1 4
[1, 4, 3, 2] has 213 2 1 4
[1, 4, 3, 2] has 213 2 1 3
[[1, 2, 4, 3], [1, 3, 2, 4], [1, 3, 4, 2], [1, 4, 2, 3], [1, 4, 3, 2]]
5