13:I[87,["736","static/chunks/89fc4f0e-9e200ae6a0166583.js","401","static/chunks/363642f4-32903b9154b7835a.js","153","static/chunks/153-58eddeb032cc4608.js","131","static/chunks/131-05ce00cfd760e12b.js","87","static/chunks/87-b76b60eef573119a.js","286","static/chunks/app/problem/%5Bid%5D/page-45cf3875257fc32e.js"],"Header"] 14:I[1742,["736","static/chunks/89fc4f0e-9e200ae6a0166583.js","401","static/chunks/363642f4-32903b9154b7835a.js","153","static/chunks/153-58eddeb032cc4608.js","131","static/chunks/131-05ce00cfd760e12b.js","87","static/chunks/87-b76b60eef573119a.js","286","static/chunks/app/problem/%5Bid%5D/page-45cf3875257fc32e.js"],"ProblemView"] 15:T6c5,

You are given two integers $$$x$$$ and $$$y$$$ such that $$$y \gt x$$$ and $$$y \bmod x = 0$$$ (that is, $$$y$$$ is divisible by $$$x$$$).

Your task is to determine whether there exists an integer $$$z$$$ such that

$$$z$$$ lies between $$$x$$$ and $$$y$$$ (that is, $$$x \lt z \lt y$$$);
$$$z$$$ is divisible by $$$x$$$ (that is, $$$z \bmod x = 0$$$);
$$$y$$$ is not divisible by $$$z$$$ (that is, $$$y \bmod z \ne 0$$$).

Input

Each test contains multiple test cases. The first line contains the number of test cases $$$t$$$ ($$$1 \le t \le 10^4$$$). The description of the test cases follows.

Each test case consists of a single line containing two integers $$$x$$$ and $$$y$$$ ($$$1 \le x \lt y \le 10^{18}$$$; $$$y \bmod x = 0$$$).

Output

For each test case, print the answer as follows: if the required number $$$z$$$ exists, print

A Number Between Two Others

Examples