import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
while(sc.hasNext())
{
char c=sc.next().charAt(0);
if(c=='A'||c=='E'||c=='I'||c=='O'||c=='U'||c=='a'||c=='e'||c=='i'||c=='o'||c=='u')
{
System.out.println("Vowel");
}
else{
System.out.println("Consonant");
}
}
}
}

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