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<!DOCTYPE html> <html> <body> <script> var a = 1993 + NaN; var b = 1993 - NaN; var c = 1993 * NaN; var d = 1993 / NaN; document.write(a + "<hr>"); document.write(b + "<hr>"); document.write(c + "<hr>"); document.write(d + "<hr>"); </script> </body> </html>
<!DOCTYPE html> <html> <body> <script> var a = 1993 + NaN; var b = 1993 - NaN; var c = 1993 * NaN; var d = 1993 / NaN; document.write(a + "<hr>"); document.write(b + "<hr>"); document.write(c + "<hr>"); document.write(d + "<hr>"); </script> </body> </html>