import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
String[] strs = {"A","a","E","e","I","i","O","o","U","u"};
String str;
while(sc.hasNext()) {
str = sc.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");
}
}
}
}