5

#include<iostream>
#include<fstream>
#include<vector>

using namespace std;

typedef vector < string > strvec;

strvec get_all_words(string text){
    strvec result;
    string temp;
    for (int i = 0; i < text.size(); ++i){
        if (isalnum(text[i])){
            temp += text[i];
        } else {
            if (!temp.empty()){
                result.push_back(temp);
                temp.clear();
            }
        }
    }
    return result;
}

bool good(char ch){
    ch = tolower(ch);
    return ch == 'e' || ch == 'u' || ch == 'i' || ch == 'o' || ch == 'a' || ch == 'y';
}
bool check(const string &word){
    return good(*word.rbegin());
}

bool isnum(const string &word){
    for (int i = 0; i < word.size(); ++i){
        if (isalpha(word[i])){
            return false;
        }
    }
    return true;
}

int main(){

    ifstream in("input.txt");
    ofstream out("output.txt");

    string all;

    string line;
    while (getline(in, line)){
        all += line + "\n";
        out << line << "\n";
    }

    strvec words = get_all_words(all),
           small_words;
    int cnt = 0;
    for (int i = 0; i < words.size();){
        cnt += check(words[i]);
        if (words[i].size() < 5){
            small_words.push_back(words[i]);
        }
        if (!isnum(words[i])){
            words.erase(words.begin() + i);
        } else {
            ++i;
        }
    }

    cout << cnt << "\n"
         << "Numbers:\n";
    for (int i = 0; i < words.size(); ++i){
        cout << words[i] << " ";
    }
    cout << "\n"
         << "Small words:\n";
    for (int i = 0; i < small_words.size(); ++i){
        cout << small_words[i] << " ";
    }

}