#include <stdio.h>

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