import java.util.*;
    import java.lang.*;
    import java.util.regex.*;
 
    class Main
    {
        public static void main (String[] args)
    	{
            String s="குமார_கு";
            List<String> characters=new ArrayList<String>();
            Pattern pat = Pattern.compile("\u0B95\u0BCD\u0BB7\\p{M}?|\\p{L}\\p{M}?|\\p{P}");
            Matcher matcher = pat.matcher(s);
            while (matcher.find()) {
                characters.add(matcher.group());            
            }
 
            // Test if we have the right characters and length
            System.out.println(characters);
            System.out.println("String length: " + characters.size());
 
        }
    }

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