We all vary familar with prime numbers, now we get a integer N（1<=n <= 16）, for 1 to N, your task is to write a
sequences a1~an, all numbers only use once, and every sum of adjacent
two numbers should be prime. No matter how you cut a circle, they're
just the same, so one circle should be print only once. For all results,
we print by lexicographical order. If there's no answer, you needn't
There are many cases, end until EOF, each a integer N（1<=n <= 16） in a single line.
Please prnit by lexicographical order.
1 2 3 4
1 4 3 2
1 4 3 2 5 6
1 6 5 2 3 4