// CSE 143, Autumn 2013
// Prints out a reversed version of a file and a second version of the same file
// without plural words (words ending in "s")

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

public class ReverseFile {
	public static void main(String[] args) throws FileNotFoundException {
	
		ArrayList<String> allWords = new ArrayList<String>();
	
		Scanner input = new Scanner(new File("poem.txt"));
		
		while(input.hasNext()) {
			String word = input.next();
			allWords.add(word);
		}
		
		for(int i = allWords.size() - 1; i >= 0; i--) {
			System.out.println(allWords.get(i));
		} 
		
		for(int i = allWords.size() - 1; i >= 0; i--) {
			if(allWords.get(i).endsWith("s")) {
				allWords.remove(i);
			}
		}
		System.out.println(allWords.toString());
	
	}
}