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Write a function named multi_search, that takes two open files as arguments and returns a list of 3-tuples as a result (based on the information in both files). The multi search function reads the first file, interpreting each line in it as a regular expression pattern. Then it reads the second file, and for each line in the file, it produces a 3-tuple in the returned list, but only if the line matches (using re. search:

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