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[MUSIC PLAYING]

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[RECORD SCRATCHING]

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SPEAKER 1: Hello, world.

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This is CS50--

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RAMON GALVAN: Live.

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I'm Ramon Galvan filling
in today for David--

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SPEAKER 1: Who's lost his voice.

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RAMON GALVAN: Today he'll be the
Andy Richter to Mike Conan O'Brien.

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[MUSIC PLAYING]

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