#include <iostream>

#include <string>

using namespace std;

​

class Book {

  public:

    string title;

    string author;

    int year;

};

​

int main() {

  Book book1;

  book1.title = "Matilda";

  book1.author = "Roald Dahl";

  book1.year = 1988;

​

  Book book2;

  book2.title = "The Giving Tree";

  book2.author = "Shel Silverstein";

  book2.year = 1964;

​

  cout << book1.title << ", " << book1.author << ", " << book1.year << "\n";

  cout << book2.title << ", " << book2.author << ", " << book2.year;

  return 0;

}

​