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How should you configure URL maps to route audio and video traffic from a multilingual streaming application to separate backend Google Cloud storage buckets while minimizing operational overhead, given the current directory structure:
/fr/video
/en/video
/es/video
/../video
/fr/audio
/en/audio
/es/audio
/../audio
(Note: Corrected "/en/video" typo to "/en/video" in the path list for consistency)