import java.util.Scanner;
public class Main{
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        String vowelStrs = "AEIOU";//大写元音组
        while(scan.hasNextLine()) {
            String str = scan.nextLine();
            if(vowelStrs.contains(str.toUpperCase())) {//将输入字符大写后与大写元音组进行匹配
                System.out.println("Vowel");
            } else {
                System.out.println("Consonant");
            }
        }
    }
}