Codeforces Round 924 (Div. 2)
A
Rectangle Cutting
Codeforces
800
原题
←B →
翻译中…

Bob has a rectangle of size $a \times b$. He tries to cut this rectangle into two rectangles with integer sides by making a cut parallel to one of the sides of the original rectangle. Then Bob tries to form some other rectangle from the two resulting rectangles, and he can rotate and move these two rectangles as he wishes.

翻译中…

Note that if two rectangles differ only by a $90^{\circ}$ rotation, they are considered the same. For example, the rectangles $6 \times 4$ and $4 \times 6$ are considered the same.

翻译中…

Thus, from the $2 \times 6$ rectangle, another rectangle can be formed, because it can be cut into two $2 \times 3$ rectangles, and then these two rectangles can be used to form the $4 \times 3$ rectangle, which is different from the $2 \times 6$ rectangle.

翻译中…

image

翻译中…

However, from the $2 \times 1$ rectangle, another rectangle cannot be formed, because it can only be cut into two rectangles of $1 \times 1$, and from these, only the $1 \times 2$ and $2 \times 1$ rectangles can be formed, which are considered the same.

翻译中…

image

翻译中…

Help Bob determine if he can obtain some other rectangle, or if he is just wasting his time.

翻译中…

Input

翻译中…

Each test consists of multiple test cases. The first line contains a single integer $t$ ($1 \leq t \leq 10^4$) — the number of test cases. This is followed by the description of the test cases.

翻译中…

The single line of each test case contains two integers $a$ and $b$ ($1 \le a, b \le 10^9$) — the size of Bob's rectangle.

翻译中…

Output

翻译中…

For each test case, output "Yes" if Bob can obtain another rectangle from the $a \times b$ rectangle. Otherwise, output "No".

翻译中…

You can output the answer in any case (upper or lower). For example, the strings "yEs", "yes", "Yes", and "YES" will be recognized as positive answers.

翻译中…

Note

翻译中…

In the first test case, the $1 \times 1$ rectangle cannot be cut into two rectangles, so another rectangle cannot be obtained from it.

翻译中…

In the fourth test case, the $3 \times 2$ rectangle can be cut into two $3 \times 1$ rectangles, and from these, the $1 \times 6$ rectangle can be formed.

翻译中…

In the fifth test case, the $2 \times 2$ rectangle can be cut into two $1 \times 2$ rectangles, and from these, the $1 \times 4$ rectangle can be formed.

翻译中…

样例

Input #1
7
1 1
2 1
2 6
3 2
2 2
2 4
6 3
Output #1
No
No
Yes
Yes
Yes
Yes
No
InputCopy OutputCopy
题目信息
题号
1928A
时间限制
1 s
内存限制
256 MB
标签
计算几何
数学

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