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    SELECT s.Name

    FROM Friends as f LEFT JOIN Students as s ON f.ID = s.ID LEFT JOIN Packages as p ON f.ID = p.ID LEFT JOIN (
    SELECT f.ID, f.Friend_ID, s.Name, p.Salary FROM Friends as f LEFT JOIN Students as s ON f.Friend_ID = s.ID LEFT JOIN Packages as p ON f.Friend_ID = p.ID ) as ff ON f.ID = ff.ID

    WHERE ff.Salary > p.Salary Order by ff.Salary asc