Input (grade 10): Rocky Marciano (September 1, 1923 - August 31, 1969), born Rocco Francis Marchegiano, was the heavyweight champion of the world from 1952 to 1956.
Output (grade 10): Rocco Francis Marchegiano, better known as Rocky Marciano (September 1, 1923 - August 31, 1969), was an American boxer.