102400: [AtCoder]ABC240 A - Edge Checker

Problem Statement

In the figure shown in the image below, are the points numbered $a$ and $b$ directly connected by a line segment?

Constraints

• $1 \leq a \lt b \leq 10$
• $a$ and $b$ are integers.

Input

Input is given from Standard Input in the following format:

$a$ $b$

Output

If the points numbered $a$ and $b$ are directly connected by a line segment, print Yes; otherwise, print No.
The judge is case-sensitive: be sure to print uppercase and lowercase letters correctly.

Sample Input 1

4 5

Sample Output 1

Yes

In the figure shown in the Problem Statement, the points numbered $4$ and $5$ are directly connected by a line segment.
Thus, Yes should be printed.

Sample Input 2

3 5

Sample Output 2

No

In the figure shown in the Problem Statement, the points numbered $3$ and $5$ are not directly connected by a line segment.
Thus, No should be printed.

Sample Input 3

1 10

Sample Output 3

Yes

问题描述

在下面图像中所示的图形中，点数为$a$和$b$的点之间是否直接由一条线段连接？

约束条件

• $1 \leq a \lt b \leq 10$
• $a$和$b$为整数。

输入

从标准输入以以下格式接收输入：

$a$ $b$

输出

如果点数为$a$和$b$的点之间直接由一条线段连接，则打印Yes；否则，打印No。
裁判是区分大小写的：请确保正确打印大小写字母。

样例输入1

4 5

样例输出1

Yes

在问题描述中所示的图形中，点数为$4$和$5$的点之间直接由一条线段连接。
因此，应打印Yes。

样例输入2

3 5

样例输出2

No

在问题描述中所示的图形中，点数为$3$和$5$的点之间没有直接由一条线段连接。
因此，应打印No。

样例输入3

1 10

样例输出3

Yes