#include <stdio.h>

int main() {

    char s[] = "AaEeIiOoUu";
    char ch = 0;

    while (scanf(" %c", &ch)!= EOF)
    {
        int i = 0;
        for(i = 0; i < 10; i++)
        {
            if (ch == s[i])
            {
                printf("Vowel\n");
                break;
            }
        }
        if (i == 10)
        {
            printf("Consonant\n");
        }
    }
    return 0;
}