/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/* 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
	{
 
 
		final String regex = "a(b|(bc|(bcd|(bcde|bcdef))))?$";
		String string = "asdjb|ak.fvajfabcdefabcdefabcdefabc";
 
		final Pattern pattern = Pattern.compile(regex);
		Matcher matcher = pattern.matcher(string);
		int length = 0;
		while (matcher.find()) {
    		System.out.println("Full match: " + matcher.group(0));
    		length += matcher.group(0).length();
    		// System.out.println(string.substring(0, string.length()-length));
    		// string = string.substring(0, string.length());
    		// System.out.println(string);
    		matcher = pattern.matcher(string.substring(0, string.length()- length));
		}
		System.out.println(string.substring(0, string.length()- length));
	}
}

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