#include <stdio.h>

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