No tag edit access

B. Kyoya and Permutation

time limit per test

2 secondsmemory limit per test

256 megabytesinput

standard inputoutput

standard outputLet's define the permutation of length *n* as an array *p* = [*p*_{1}, *p*_{2}, ..., *p*_{n}] consisting of *n* distinct integers from range from 1 to *n*. We say that this permutation maps value 1 into the value *p*_{1}, value 2 into the value *p*_{2} and so on.

Kyota Ootori has just learned about cyclic representation of a permutation. A cycle is a sequence of numbers such that each element of this sequence is being mapped into the next element of this sequence (and the last element of the cycle is being mapped into the first element of the cycle). The cyclic representation is a representation of *p* as a collection of cycles forming *p*. For example, permutation *p* = [4, 1, 6, 2, 5, 3] has a cyclic representation that looks like (142)(36)(5) because 1 is replaced by 4, 4 is replaced by 2, 2 is replaced by 1, 3 and 6 are swapped, and 5 remains in place.

Permutation may have several cyclic representations, so Kyoya defines the standard cyclic representation of a permutation as follows. First, reorder the elements within each cycle so the largest element is first. Then, reorder all of the cycles so they are sorted by their first element. For our example above, the standard cyclic representation of [4, 1, 6, 2, 5, 3] is (421)(5)(63).

Now, Kyoya notices that if we drop the parenthesis in the standard cyclic representation, we get another permutation! For instance, [4, 1, 6, 2, 5, 3] will become [4, 2, 1, 5, 6, 3].

Kyoya notices that some permutations don't change after applying operation described above at all. He wrote all permutations of length *n* that do not change in a list in lexicographic order. Unfortunately, his friend Tamaki Suoh lost this list. Kyoya wishes to reproduce the list and he needs your help. Given the integers *n* and *k*, print the permutation that was *k*-th on Kyoya's list.

Input

The first line will contain two integers *n*, *k* (1 ≤ *n* ≤ 50, 1 ≤ *k* ≤ *min*{10^{18}, *l*} where *l* is the length of the Kyoya's list).

Output

Print *n* space-separated integers, representing the permutation that is the answer for the question.

Examples

Input

4 3

Output

1 3 2 4

Input

10 1

Output

1 2 3 4 5 6 7 8 9 10

Note

The standard cycle representation is (1)(32)(4), which after removing parenthesis gives us the original permutation. The first permutation on the list would be [1, 2, 3, 4], while the second permutation would be [1, 2, 4, 3].

Codeforces (c) Copyright 2010-2017 Mike Mirzayanov

The only programming contests Web 2.0 platform

Server time: Dec/13/2017 12:19:18 (c6).

Desktop version, switch to mobile version.

User lists

Name |
---|