Question: Write a function that takes in a list of strings and returns the longest common prefix of the strings. If there is no common prefix,

Write a function that takes in a list of strings and returns the longest common prefix of the strings. If there is no common prefix, the function should return an empty string. For example, if the input list is ["flower", "flow", "flight"], the function should return "fl". If the input list is ["dog", "racecar", "car"], the function should return an empty string.

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