Regex which return content from each group

Main.java

package com.company;

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

public class Main {

    public static void main(String[] args) {
        Main main = new Main();

        String input = "[0-9]{1,13}";
        String regex = "\\[.*]\\{([0-9]+),([0-9]+)}";

        Pattern pattern = Pattern.compile(regex);

        try {
            Matcher matcher = pattern.matcher(input);
            main.print(input, matcher);
        }catch (Exception e){
            e.printStackTrace();
        }
    }

    public void print(String input, Matcher matcher){
        System.out.println("Input: " + input);
        System.out.println("Matches? " + matcher.matches());

        System.out.println("Groups: " + matcher.groupCount());

        System.out.println("Min: " + matcher.group(1));
        System.out.println("Max: " + matcher.group(2));
    }
}