/* package whatever; // don't place package name! */
import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.regex.*;
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
{
String rx
= "<(h1|h2|h3|h4|ul|td|div|table)"; Pattern ptrn = Pattern.compile(rx, Pattern.CASE_INSENSITIVE);
Matcher m = ptrn.matcher(str);
while (m.find()) {
System.
out.
println(m.
group(0)); }
}
}
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