Virtual contest is a way to take part in past contest, as close as possible to participation on time. It is supported only ICPC mode for virtual contests.
If you've seen these problems, a virtual contest is not for you - solve these problems in the archive.
If you just want to solve some problem from a contest, a virtual contest is not for you - solve this problem in the archive.
Never use someone else's code, read the tutorials or communicate with other person during a virtual contest.

No tag edit access

The problem statement has recently been changed. View the changes.

×
B. Rock and Lever

time limit per test

1 secondmemory limit per test

256 megabytesinput

standard inputoutput

standard output "You must lift the dam. With a lever. I will give it to you.

You must block the canal. With a rock. I will not give the rock to you."

Danik urgently needs rock and lever! Obviously, the easiest way to get these things is to ask Hermit Lizard for them.

Hermit Lizard agreed to give Danik the lever. But to get a stone, Danik needs to solve the following task.

You are given a positive integer $$$n$$$, and an array $$$a$$$ of positive integers. The task is to calculate the number of such pairs $$$(i,j)$$$ that $$$i<j$$$ and $$$a_i$$$ $$$\&$$$ $$$a_j \ge a_i \oplus a_j$$$, where $$$\&$$$ denotes the bitwise AND operation, and $$$\oplus$$$ denotes the bitwise XOR operation.

Danik has solved this task. But can you solve it?

Input

Each test contains multiple test cases.

The first line contains one positive integer $$$t$$$ ($$$1 \le t \le 10$$$) denoting the number of test cases. Description of the test cases follows.

The first line of each test case contains one positive integer $$$n$$$ ($$$1 \le n \le 10^5$$$) — length of the array.

The second line contains $$$n$$$ positive integers $$$a_i$$$ ($$$1 \le a_i \le 10^9$$$) — elements of the array.

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

Output

For every test case print one non-negative integer — the answer to the problem.

Example

Input

5 5 1 4 3 7 10 3 1 1 1 4 6 2 5 3 2 2 4 1 1

Output

1 3 2 0 0

Note

In the first test case there is only one pair: $$$(4,7)$$$: for it $$$4$$$ $$$\&$$$ $$$7 = 4$$$, and $$$4 \oplus 7 = 3$$$.

In the second test case all pairs are good.

In the third test case there are two pairs: $$$(6,5)$$$ and $$$(2,3)$$$.

In the fourth test case there are no good pairs.

Codeforces (c) Copyright 2010-2022 Mike Mirzayanov

The only programming contests Web 2.0 platform

Server time: Oct/03/2022 05:11:49 (h1).

Desktop version, switch to mobile version.

Supported by

User lists

Name |
---|