// Program 11: Vowels Arranged in a Square Matrix

import java.util.*;
class ST {
    String text;
    String vowels;
    void input() {
        Scanner sc = new Scanner(System.in);
        text = sc.nextLine();
    }
    void arrange() {
        vowels = "";
        for (int i = 0; i < text.length(); i++) {
            char ch = text.charAt(i);
            char up = Character.toUpperCase(ch);
            if ("AEIOU".indexOf(up) >= 0) {
                vowels += ch;
            }
        }
        if (vowels.length() % 2 != 0) {
            vowels += 'A';
        }
        int rows = vowels.length() / 2;
        if (rows == 0) {
            System.out.println("No vowels");
            return;
        }
        char[][] matrix = new char[rows][2];
        int index = 0;
        for (int i = 0; i < rows; i++) {
            for (int j = 0; j < 2; j++) {
                matrix[i][j] = vowels.charAt(index++);
                System.out.print(matrix[i][j] + " ");
            }
            System.out.println();
        }
    }
    public static void main(String[] args) {
        ST ob = new ST();
        ob.input();
        ob.arrange();
    }
}