import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
String[] strs = {"A","a","E","e","I", "i","O","o","U","u"};
while(scanner.hasNext()) {
String str = scanner.next();
int i;
for(i = 0; i < strs.length; i++) {
if(strs[i].equals(str)) {
System.out.println("Vowel");
break;
}
}
if(i >= 10) {
System.out.println("Consonant");
}
}
}
}