document.writeln('1. era
');
document.writeln('2. dio
');
document.writeln('3. man
');
document.writeln('4. con
');
document.writeln('5. rem
');
document.writeln('6. dream
');
document.writeln('7. deep purple
');
document.writeln('8. ant
');
document.writeln('9. red
');
document.writeln('10. aug
');
document.writeln('11. musica
');
document.writeln('12. pink floyd
');
document.writeln('13. y
');
document.writeln('14. yes
');
document.writeln('15. blues
');
document.writeln('16. rolling stones
');
document.writeln('17. alex
');
document.writeln('18. beatles
');
document.writeln('19. metallica
');
document.writeln('20. elvis presley
');