#include <stdio.h>

int main(void)
{
    /* Take a smaller letter alphabet as input and print whether it is
    VOWEL or CONSONANT */

    char letter;

    scanf("%c", &letter);

    if (letter == 'a' || letter == 'e' || letter == 'i' || letter == 'o' || letter == 'u') {
        printf("VOWEL");
    } else {
        printf("CONSONANT");
    }

    return 0;
}