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In page Rock paper scissors:

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Variations include a version where players throw immediately on the third count (thus throwing on the count of "Scissors!"), a version including five counts rather than four ("Rock! Paper! Scissors! Says! Shoot!", almost exclusively localized in the United States to Long Island and some parts of New York City), a version where players say “Scissors! Paper! Rock!”, and a version where players shake their hands three times before "throwing".[citation needed]