>>> California car license plate number starts with CA and Arizona state car license plate number starts with AZ, can you show which of the following car license numbers belong to California and Arizona, and the one that belongs to none of them? 
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The California car license plate number starts with the letters "CA," and the Arizona state car license plate number starts with the letters "AZ." Based on this context, we can determine which of the following car license numbers belong to California and Arizona.

The car license number CAAZ001 belongs to Arizona, as it starts with the letters "AZ."
The car license number AZCA002 also belongs to Arizona, as it starts with the letters "AZ."
The car license number C101010 belongs to California, as it starts with the letters "CA."
The car license number A101010 belongs to Arizona, as it starts with the letters "AZ."
The car license number Z420921 does not belong to either California or Arizona, as it does not start with the letters "CA" or "AZ."
The car license number CZ23432 belongs to California, as it starts with the letters "CA."
The car license number AA70873 does not belong to either California or Arizona, as it starts with the letters "AA" instead of "CA" or "AZ."
The car license number CAZ4536 belongs to California, as it starts with the letters "CA."

Therefore, the car license number Z420921 belongs to neither California nor Arizona, as it does not start with the letters "CA" or "AZ."