import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

class fancy {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        int number = Integer.parseInt(scanner.nextLine());
        String regex = "@#+([A-Za-z0-9]+)+@#+";

        String regexTwo = "(\\d+)";
        Pattern pattern = Pattern.compile(regex);
        Pattern patternTwo = Pattern.compile(regexTwo);

        for (int i = 0; i < number; i++) {

            String message = scanner.nextLine();

            Matcher matcher = pattern.matcher(message);
            Matcher matcherTwo = patternTwo.matcher(message);

            if (matcher.find()) {
                String barcode = matcher.group(0);

                if (matcherTwo.find()) {
                       String text = matcherTwo.group(0);

                        while (matcherTwo.find()) {
                            text += matcherTwo.group(0);
                    }
                      System.out.println("Product group: " + text);
                } else {
                       System.out.println("Product group: 00");
                }


            } else {
                System.out.println("Invalid barcode");
            }

        }
    }