import java.util.*;
import java.lang.*;
import java.util.regex.Pattern;
import java.util.regex.Matcher;
 
class Main
{
        public static void main (String[] args) throws java.lang.Exception
        {
           int scount = 0;
		   Pattern p2 = Pattern.compile("\\w{1,2}");
		   String txt = "hello everyone this is just test aa ";
		   Matcher m2 = p2.matcher(txt);
		   while (m2.find()) {
		       scount++;
		   }
		   System.out.println(scount);
        }
}

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