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".

Hints

• toUpperCase()
• toLowerCase()
• concat()
• slice()

Input/Output

• [execution time limit] 5 seconds (ts)
• [input] string noun

A string representing a proper noun with a mix of capital and small Latin letters.

Guaranteed constraints:

1 ≤ noun.length ≤ 10.

• [output] string

Corrected (if needed) noun.