package test;

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

public class Main {

    public static Pattern pattern=Pattern.compile("(\\d{3})(.*\\1){2}");

    public static void main(String[] args) {
        String s1="13620446688";
        Matcher m1=pattern.matcher(s1);
        System.out.println(m1.find());

        String s2="13613613600";
        Matcher m2=pattern.matcher(s2);
        System.out.println(m2.find());

        String s3="13601360136";
        Matcher m3=pattern.matcher(s3);
        System.out.println(m3.find());
    }

}