#P290E. HQ
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ID: 8419
Type: RemoteJudge
2000ms
256MiB
Tried: 0
Accepted: 0
Difficulty: 9
Uploaded By:
Hydro
Tags> HQ
Description
The famous joke programming language HQ9+ has only 4 commands. In this problem we will explore its subset — a language called HQ...
The only line of the input is a string between 1 and 106 characters long.
Output "Yes" or "No".
Input
The only line of the input is a string between 1 and 106 characters long.
Output
Output "Yes" or "No".
HHHH
HQHQH
HHQHHQH
HHQQHHQQHH
Yes
No
No
Yes
Note
The rest of the problem statement was destroyed by a stray raccoon. We are terribly sorry for the inconvenience.