Grusel++ of the month

/******************************************************************************/
/*                                                                            */
/*                                                        FILE: september.cpp */
/*                                                                            */
/*  How long does it take to get used to the C++ style of output formatting ? */
/*  ========================================================================= */
/*                                                                            */
/*  Compiled and tested with Visual C++ V6.0                                  */
/*                                                                            */
/*  V1.00   19-SEP-2001   P. Tellenbach   http://www.heimetli.ch/             */
/*                                                                            */
/******************************************************************************/

#include <iostream>
#include <iomanip>

using namespace std ;

int main()
{
  return
     ( operator<<(
          operator<<(
             cout << resetiosflags( ios::basefield | ios::adjustfield )
                  << setiosflags( ios::hex | ios::left )
                  << setfill( 'l' )
                  <<'H'
                  << setw( 3 )
                  << 016
                  << right
                  << setfill( 'o' )
                  << setw( 2 )
                  << static_cast<char>( 'a' - 'A' )
                  << setw( 2 )
                  << left
                  << 'w', "rl"
          ) << 13, " !"
       ) << endl
     ) . bad() ;
}

Update 21. September 2021

This program compiles and runs without any changes.