集合运算

import java.util.*;
public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        String s = "AEIOUaeiou";
        while(sc.hasNext()){
            String c = sc.nextLine();
            if(s.contains(c)) System.out.println("Vowel");
            else System.out.println("Consonant");
        }
    }
}