codeforces#P1145F. Neat Words
Neat Words
Description
The input consists of a single string of uppercase letters A-Z. The length of the string is between 1 and 10 characters, inclusive.
Output "YES" or "NO".
Input
The input consists of a single string of uppercase letters A-Z. The length of the string is between 1 and 10 characters, inclusive.
Output
Output "YES" or "NO".
Samples
NEAT
YES
WORD
NO
CODER
NO
APRILFOOL
NO
AI
YES
JUROR
YES
YES
NO