/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.regex.Pattern;
import java.util.regex.Matcher;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		String s1="[sh1] Hello, World! [/s11] and [pp]This is a minimal \"hello world\" HTML document. It demonstrates the basic structure of an HTML file and anchors. [/xy]";
		Pattern pattern = Pattern.compile("\\[[^\\]]*\\]([^\\]]*)\\[[^\\]]*\\]");
		Matcher matcher = pattern.matcher(s1);
		while (matcher.find()) {
			System.out.println("Found value: " + matcher.group(1).trim() );
		}
	}
}

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