Please subscribe to the official Codeforces channel in Telegram via the link https://t.me/codeforces_official.
×

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.

×
A. Find Divisible

time limit per test

2 secondsmemory limit per test

256 megabytesinput

standard inputoutput

standard outputYou are given a range of positive integers from $$$l$$$ to $$$r$$$.

Find such a pair of integers $$$(x, y)$$$ that $$$l \le x, y \le r$$$, $$$x \ne y$$$ and $$$x$$$ divides $$$y$$$.

If there are multiple answers, print any of them.

You are also asked to answer $$$T$$$ independent queries.

Input

The first line contains a single integer $$$T$$$ ($$$1 \le T \le 1000$$$) — the number of queries.

Each of the next $$$T$$$ lines contains two integers $$$l$$$ and $$$r$$$ ($$$1 \le l \le r \le 998244353$$$) — inclusive borders of the range.

It is guaranteed that testset only includes queries, which have at least one suitable pair.

Output

Print $$$T$$$ lines, each line should contain the answer — two integers $$$x$$$ and $$$y$$$ such that $$$l \le x, y \le r$$$, $$$x \ne y$$$ and $$$x$$$ divides $$$y$$$. The answer in the $$$i$$$-th line should correspond to the $$$i$$$-th query from the input.

If there are multiple answers, print any of them.

Example

Input

3 1 10 3 14 1 10

Output

1 7 3 9 5 10

Codeforces (c) Copyright 2010-2021 Mike Mirzayanov

The only programming contests Web 2.0 platform

Server time: Sep/22/2021 09:24:00 (h1).

Desktop version, switch to mobile version.

Supported by

User lists

Name |
---|