Headline Casing

Easy

An editorial team wants every article headline in one consistent style. The headline headline is made of Latin-letter words separated by exactly one space, and the letter case is all over the place. The rule is: - a word of one or two letters is written entirely in lowercase; - a word of three or more letters gets an uppercase first letter and lowercase for the rest. Return the headline restyled by this rule.

Example 1

headline="NEW cafe IN the OLD town" → 'New Cafe in The Old Town'

Words of three or more letters get a capital first letter; "IN" is shorter, so it goes all lowercase.

Example 2

headline="a dOg TO walk" → 'a Dog to Walk'

"a" and "TO" are short and become lowercase; "dOg" and "walk" become "Dog" and "Walk".

Constraints

1 ≤ len(headline) ≤ 100
Words are non-empty and consist of uppercase and lowercase Latin letters
Words are separated by exactly one space, with no leading or trailing spaces

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Input

headline="NEW cafe IN the OLD town"

Expected

'New Cafe in The Old Town'

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