K Subset Xors

You are given an array of n integers. Consider the xors of all 2^n subsets of the array (including the empty subset with xor equal to zero). Your task is to find the k smallest subset xors.

Input

The first line has two integers n and k: the size of the array and the number of subset xors k. The next line has n integers x_1, x_2,\dots, x_n: the contents of the array.

Output

Print k integers: the k smallest subset xors in increasing order.

Constraints

$1 \le n \le 2$ \cdot 10^5$

$1 \le k \le \min(2^n, 2 \cdot 10^5)$

$0 \le x_i \le 10^9$

Example

Input

4 9
3 5 14 8

Output

0 0 3 3 5 5 6 6 8