#include<iostream>
#include<cstring>
using namespace std;
void printBook(struct Books book);
struct Books
{
  char  title[50];
  char  author[50];
  char  subject[100];
  int   book_id;
};
int main()
{
  struct Books Book1;
  struct Books Book2;
  strcpy(Book1.title,"Mathematics for IITJEE");
  strcpy(Book1.author,"RD Sharma");
  strcpy(Book1.subject,"JEE Mathematics");
  Book1.book_id = 6495407;
  strcpy( Book2.title,"Physics");
  strcpy( Book2.author,"IE Irodov");
  strcpy( Book2.subject,"JEE Mechanical Physics");
  Book2.book_id=6495700;
  printBook(Book1);
  printBook(Book2);
  return 0;
}
void printBook(struct Books book)
{
  cout<<"Book title : "<<book.title<<endl;
  cout<<"Book author : "<<book.author<<endl;
  cout<<"Book subject : "<<book.subject<<endl;
  cout<<"Book id : "<<book.book_id<<endl;
}