A15385. Orray

You are given an array $a$ consisting of $n$ nonnegative integers.

Let's define the prefix OR array $b$ as the array $b_i = a_1~\mathsf{OR}~a_2~\mathsf{OR}~\dots~\mathsf{OR}~a_i$ , where $\mathsf{OR}$ represents the [bitwise OR operation](https://en.wikipedia.org/wiki/Bitwise_operation#OR). In other words, the array $b$ is formed by computing the $\mathsf{OR}$ of every prefix of $a$ .

You are asked to rearrange the elements of the array $a$ in such a way that its prefix OR array is lexicographically maximum.

An array $x$ is lexicographically greater than an array $y$ if in the first position where $x$ and $y$ differ, $x_i > y_i$ .

The first line of the input contains a single integer $t$ ( $1 \le t \le 100$ ) — the number of test cases. The description of test cases follows.

The first line of each test case contains a single integer $n$ ( $1 \leq n \leq 2 \cdot 10^5$ ) — the length of the array $a$ .

The second line of each test case contains $n$ nonnegative integers $a_1, \ldots, a_n$ ( $0 \leq a_i \leq 10^9$ ).

It is guaranteed that the sum of $n$ over all test cases does not exceed $2 \cdot 10^5$ .

For each test case print $n$ integers — any rearrangement of the array $a$ that obtains the lexicographically maximum prefix OR array.