2033 Meme Vote

Time limit1sMemory limit1024 MB

Summary

Given N lines, print Yes if any line is not one of Rick Astley's seven original promises (case-sensitive), otherwise print No.

Level: Easy1 of 10
Topics: String, Implementation
Solved: No attempts yet

Problem

In 2033, a vote will decide the number one meme in Harunara. The candidates competing for first place each present unique campaign promises. A poll shows that 'Rick Astley' leads with the following promises.

Never gonna give you up
Never gonna let you down
Never gonna run around and desert you
Never gonna make you cry
Never gonna say goodbye
Never gonna tell a lie and hurt you
Never gonna stop

However, hacking has advanced so far that a hacker who dislikes Rick Astley's promises is secretly changing them. haru_101 wants to know whether the hacker has changed Rick Astley's promises. If even one of the given sentences does not belong to the original promises, the promises are considered changed. Case matters. Help haru_101.

Input

The first line contains an integer $N$ . $(1 \leq N \leq 100)$

From the second line through line $N+1$ , each line contains a promise $S_i$ made of English letters (upper and lower case) and spaces. $S_i$ does not start or end with a space. $(1 \leq |S_i| \leq 50)$

Output

If every sentence belongs to the promises made by Rick Astley, print No. If even one does not, print Yes.

Hint

The Never gonna stop promise can be checked here, and the promise of the second-place candidate can be checked here.

Examples1

Example 1

Input

3
Never gonna give you up
Never gonna say goodbye
Let you down

Expected output

Yes