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
        {
		   Pattern pattern = Pattern.compile("(?:Active Phone Lines:|\\G)[\\s,]*([0-9]{4})");
		   String test = "User Names: bob, jill, toni, tom"+
"Active Phone Lines: 1010, 2020, 3030, 4040, 5050, 6060, 7070"+
"Inactive Phone Lines: 1111, 2222, 3333, 4444, 5555";
		   Matcher matcher = pattern.matcher(test);
		   while (matcher.find()) {
		       System.out.println(matcher.group(1));
		   }
        }
}

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