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Write a function called area_code, with three parameters: the first, a dictionary, the second, a string (last name), and the third a string (first name). Assume that dictionary entries are of the form (lastname, firstname) : "pho-nen-umbr". For example, {("Smith", "Bob") : "400-123-1234", ("Rogers", "Alberto") : "561-125-3510"}. Your function should return the area code of the phone number corresponding to the given first and last name. If there is no person with that name in the phonebook, return -1.

Write a function called area code, with three parameters: the first, a dictionary, the second, a string (last name), and the third a string (first name). Assume that dictionary entries are of the form (lastname, firstname): "pho-nen-umbr". For example, f("Smith", "Bob"): "400-123-1234", ("Rogers", "Alberto"): "561-125-3510". Your function should return the area code of the phone number corresponding to the given first and last name. If there is no person with that name in the phonebook, return -1. For example: Test Result print (area_code(ft Smith", "Bob")"400-123-1234", ("RogersAlberto"561-125- 400 510", "Smith", Bob) print (area_code "Smith", "Bob"): "400-123-1234", "Rogers", "Alberto) : "561-125- 510","Souza", "JP")) 1