#include<stdio.h>
#include<ctype.h>


int main(){
    char ch;
    while (scanf("%c",&ch)!=EOF){
        ch = tolower(ch);
        if(ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u'){
            printf("Vowel\n");
        }else{
            printf("Consonant\n");
        }
        getchar();
    }
    return 0;
}