• + 0 comments

    Java 15:

    import java.io.*;
    import java.util.*;
    import java.util.regex.Pattern;
    import java.util.regex.Matcher;
    public class Solution {
        public static void main(String[] args) {
            Scanner scanner = new Scanner(System.in);
            Pattern pattern = Pattern.compile("^(Mr\\.|Mrs\\.|Ms\\.|Dr\\.|Er\\.)([a-z]|[A-Z])+$");
            Matcher matcher = pattern.matcher(scanner.nextLine());
            System.out.println(matcher.find());
        }
    }