Define the artist class with a constructor to initialize an artist's information and a print_info() method. the constructor should by default initialize the artist's name to "none" and the years of birth and death to 0. print_info() should display artist name, born if the year of death is -1 or artist name (-) otherwise.

define the artwork class with a constructor to initialize an artwork's information and a print_info() method. the constructor should by default initialize the title to "none", the year created to 0, and the artist to use the artist default constructor parameter values.