Write the method filenames, which returns a list of all possible filenames. Each fiename must appear exactly once in the list. A filename is generated with the first letter of the song tile, followed by "*, followed by one ogline Possible shortened forms of the artist name. The table below shows several artists and songs and the list of filenames that are generated. Artist Name Song Title BTS FIRE CHER BELIEVE ADELE HELLO PITBULL TIMBER List of filenames.
