#include <iostream>
using namespace std;

class Book {
public:
    string title;
    int price;


    Book(string t,int p){
    title = t;
    price = p;
    }

    void printlnfo() {
        cout << "title: " << title << ", price: " << price << endl;
    }
};

int main() {
    Book b("대황유",30000);
    b.printlnfo();
}