// Program 70: Count Words Beginning and Ending with a Vowel

import java.util.*;
class VowelBoundedWords {
    static boolean vowel(char c) {
        return "AEIOU".indexOf(c) >= 0;
    }
public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    String s = sc.nextLine().trim();
    if (!s.matches("[A-Z]+( [A-Z]+)*[.?!]")) {
        System.out.println("INVALID INPUT");
        return;
    }
String[] words = s.substring(0, s.length() - 1).split(" ");
ArrayList<String> yes = new ArrayList<>(), no = new ArrayList<>();
for (String w : words) {
    if (vowel(w.charAt(0)) && vowel(w.charAt(w.length() - 1))) {
        yes.add(w);
    }
else {
    no.add(w);
}
}
System.out.println("NUMBER OF WORDS BEGINNING AND ENDING WITH A VOWEL = " + yes.size());
yes.addAll(no);
System.out.println(String.join(" ", yes));
}
}