import java.util.*;
import java.lang.*;
import java.util.regex.*;
 
class Main
{
    public static void main (String[] args) throws java.lang.Exception
    {
        String input = "hello %my% world %but% not %your% world";
 
        String singleDelimRegexp = "(.*)(%[^%]*%)(.*)";
        Pattern singleDelimPattern = Pattern.compile(singleDelimRegexp);
        Matcher singleDelimMatcher = singleDelimPattern.matcher(input);
 
        if (singleDelimMatcher.matches()) {
            String before = singleDelimMatcher.group(1);
            String delim = singleDelimMatcher.group(2);
            String after = singleDelimMatcher.group(3);
 
            System.out.println(before + "//" + delim + "//" + after);
        }
 
	String multiDelimRegexp = "%[^%]*%";
        Pattern multiDelimPattern = Pattern.compile(multiDelimRegexp);
        Matcher multiDelimMatcher = multiDelimPattern.matcher(input);
 
        int lastEnd = 0;
        while (multiDelimMatcher.find()) {
            String data = input.substring(lastEnd, multiDelimMatcher.start());
            String delim = multiDelimMatcher.group();
            lastEnd = multiDelimMatcher.end();
            System.out.println(data);
            System.out.println(delim);
        }
        String lastData = input.substring(lastEnd);
        System.out.println(lastData);
 
    }
}
 
 

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