//Code for LongestWord

import java.util.*;
import java.io.*;

class Main {

    public static String LongestWord(String sen) {
        // Remove punctuation using regex and split by space
        String[] words = sen.replaceAll("[^a-zA-Z0-9 ]", "").split(" ");
        String longest = "";

        for (String word : words) {
            if (word.length() > longest.length()) {
                longest = word;
            }
        }
        return longest;
    }

    public static void main(String[] args) {
        // Test cases
        System.out.println(LongestWord("fun&!! time"));   // Output: time
        System.out.println(LongestWord("I love dogs"));   // Output: love
        System.out.println(LongestWord("Hello world!123 567")); // Output: Hello
    }
}