Score : $100$ points

问题描述

判断在下图中是否存在一条直接连接编号为 $a$ 和 $b$ 的点的线段。

以上为通义千问 qwen-max 翻译，仅供参考。

Problem Statement

Determine if there is a segment that directly connects the points numbered $a$ and $b$ in the figure below.

Constraints

• $1 \leq a \lt b \leq 15$
• $a$ and $b$ are integers.

Input

The input is given from Standard Input in the following format:

$a$ $b$

Output

Print Yes if there is a segment that directly connects the points numbered $a$ and $b$; print No otherwise.

Sample Input 1

1 2

Sample Output 1

Yes

In the figure in the Problem Statement, there is a segment that directly connects the points numbered $1$ and $2$, so Yes should be printed.

Sample Input 2

2 8

Sample Output 2

No

In the figure in the Problem Statement, there is no segment that directly connects the points numbered $2$ and $8$, so No should be printed.

Sample Input 3

14 15

Sample Output 3

No

update @ 2024/3/10 11:54:57