document.writeln('1. iron maiden
');
document.writeln('2. pink floyd
');
document.writeln('3. best of me
');
document.writeln('4. elvis presley
');
document.writeln('5. u2
');
document.writeln('6. rolling stones
');
document.writeln('7. the beatles
');
document.writeln('8. metallica
');
document.writeln('9. deep purple
');
document.writeln('10. sting
');
document.writeln('11. queen
');
document.writeln('12. bruce springsteen
');
document.writeln('13. madonna
');
document.writeln('14. beatles
');
document.writeln('15. accept
');
document.writeln('16. jimi hendrix
');
document.writeln('17. bob dylan
');
document.writeln('18. bob marley
');
document.writeln('19. abba
');
document.writeln('20. genesis
');