#include  <fstream>
#include  <iostream>
#include  <cstring>
  using namespace  std;

class  Book {
  public:
    char  title[51];
    char  ISBN[16];
    char  price[8];
    char  quantity[6];

    Book( char* a, char* b, char* c, char* d ) {
      char  spaces[51] = "                                                  ";
      strcpy  ( title, spaces );
      strncpy ( title, a, strlen( a ) );
      strcpy  ( ISBN, spaces );
      strncpy ( ISBN, b, strlen( b ) );
      strcpy  ( price, spaces );
      strncpy ( price, c, strlen( c ) );
      strcpy  ( quantity, spaces );
      strncpy ( quantity, d, strlen( d ) );
    }
};

ostream&  operator<< ( ostream& outFile, Book& b ) {

  outFile.write( b.title,   50 );
  outFile << "|";
  outFile.write( b.ISBN,    15 );
  outFile << "|";
  outFile.write( b.price,    7 );
  outFile << "|";
  outFile.write( b.quantity, 5 );
  outFile << "|" << endl;
  return( outFile );
}

int  main( int argc, char* argv[ ] ) {
  fstream  file;
  char     title[51], ISBN[16], price[8], quantity[6];
 
  strcpy( title,    argv[1] );
  strcpy( ISBN,     argv[2] );
  strcpy( price,    argv[3] ); 
  strcpy( quantity, argv[4] ); 
  Book  b( title, ISBN, price, quantity );
  file.open( "books.txt", fstream::out | fstream::app );
  file << b;
  file.close( );
}