Easy Pronunciation

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*Words that contain many consecutive consonants, like "`schtschurowskia`", are generally considered somewhat hard to pronounce.* We say that a word is *hard to pronounce* if it contains $4$ or more consonants in a row; otherwise it is *easy to pronounce*. For example, "apple" and "polish" are easy to pronounce, but "schtschurowskia" is hard to pronounce. You are given a string $S$ consisting of

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solution.cppC++17

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