import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        
        System.out.print("Enter a word: ");
        String word = sc.nextLine();
        
        int len = word.length();
        char last = word.charAt(len - 1);
        
        if (word.endsWith("ch") || word.endsWith("sh") || last == 's' || last == 'x' || last == 'z') {
            System.out.println("Plural: " + word + "es");
        } 
        else if (last == 'y' && !(word.charAt(len - 2) == 'a' || word.charAt(len - 2) == 'e' || word.charAt(len - 2) == 'i' || word.charAt(len - 2) == 'o' || word.charAt(len - 2) == 'u')) {
            String newWord = word.substring(0, len - 1) + "ies";
            System.out.println("Plural: " + newWord);
        } 
        else {
            System.out.println("Plural: " + word + "s");
        }
    }
}