#include<stdio.h>
#include<ctype.h>
int main() {
    char c;
    scanf("%c",*c);
    if(isalpha(c))
    {
        printf("Invalid input");
        return 0;
    }
    else if(c=='a'||c=='e'||c=='i'||c=='o'||c=='u')
    {
        printf("VOWELS");
    }
    else
    {
        printf("Consonants");
    }
}