Score : $100$ points

问题陈述

KEYENCE有一种文化，无论角色、年龄或职位如何，都以“-san”作为后缀来称呼每个人。

你得到了一个由小写英文字母组成的字符串 $S$。 如果 $S$ 以 san 结尾，打印 Yes；否则，打印 No。

以上为大语言模型 kimi 翻译，仅供参考。

Problem Statement

KEYENCE has a culture of addressing everyone with the suffix "-san," regardless of roles, age, or positions.

You are given a string $S$ consisting of lowercase English letters.
If $S$ ends with san, print Yes; otherwise, print No.

Constraints

• $S$ is a string of length between $4$ and $30$, inclusive, consisting of lowercase English letters.

Input

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

$S$

Output

If $S$ ends with san, print Yes; otherwise, print No.

Sample Input 1

takahashisan

Sample Output 1

Yes

The string $S=$ takahashisan ends with san, so print Yes.

Sample Input 2

aokikun

Sample Output 2

No

The string $S=$ aokikun does not end with san, so print No.