bac2k21 sb3 2

#include <iostream>
#include <cstring>
using namespace std;
#define NMAX 20
#define WORD_LEN 10
#define VOWELS "aeiou"
int n, k, auxK;
char s[NMAX][WORD_LEN], ans[NMAX][WORD_LEN];

void read() {
    cin >> n >> k;
    for (int i = 0; i < n; i++) {
        cin >> s[i];
    }
}

void solve() {
    for (int i = 0; i < n && auxK < k; i++) {
        int len = strlen(s[i]);
        if (strchr(VOWELS, s[i][len - 1])) {
            strcpy(ans[auxK++], s[i]);
        }
    }
}

void write() {
    if (auxK != k) {
        cout << "nu exista" << endl;
    } else {
        for (int i = 0; i < auxK; i++) {
            cout << ans[i] << endl;
        }
    }
}

int main() {
    read();
    solve();
    write();
    return 0;
}