#include <stdio.h>

int main() {
    char a;
    while((a=getchar())!=EOF)
    {
        getchar();
    switch(a)
    {
        case 'A':printf("Vowel\n");break;
        case 'a':printf("Vowel\n");break;
        case 'E':printf("Vowel\n");break;
        case 'e':printf("Vowel\n");break;
        case 'I':printf("Vowel\n");break;
        case 'i':printf("Vowel\n");break;
        case 'O':printf("Vowel\n");break;
        case 'o':printf("Vowel\n");break;
        case 'U':printf("Vowel\n");break;
        case 'u':printf("Vowel\n");break;
        default:printf("Consonant\n");
    }
    }
    return 0;
}