/* 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 = "^(?:90 *)?(\\d)\\d{2} *(\\d)\\d{2} *(\\d)\\d *(\\d)\\d$";
final String string = "90 533 619 11 21";
final String subst = "$1**$2**$3*$4*";
 
final Pattern pattern = Pattern.compile(regex);
final Matcher matcher = pattern.matcher(string);
 
final String result = matcher.replaceFirst(subst);
System.out.println(result);
 
	}
}

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