Looking for an a P75149


Statement
 

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Write a program that reads a sequence of characters ended in a dot and tells if the sequence has any lowercase ‘a’ or not.

Input

Input consists of a sequence of characters ended in ‘.’.

Output

Print “yes” or “no” depending on whether ‘a’ appears in the sequence or not.

Public test cases

  • Input

    I have some a's.

    Output

    yes

  • Input

    I do not.

    Output

    no
    • Information
    Author
    Salvador Roura
    Language
    English
    Translator
    Carlos Molina
    Original language
    Catalan
    Other languages
    Catalan
    Official solutions
    C++ Java Python
    User solutions
    C C++ Java Python Rust