def properNounCorrection(noun):

    return noun.capitalize()

print(properNounCorrection("pARIS"))
'''
Proper nouns always begin with a capital letter, followed by small letters.

Correct a given proper noun so that it fits this statement.

Example

    For noun = "pARiS", the output should be
    properNounCorrection(noun) = "Paris";
    For noun = "John", the output should be
    properNounCorrection(noun) = "John".

'''
