#include <stdio.h>

int main() {
    char letter[10] = { 'A', 'E', 'I', 'O', 'U', 'a', 'e', 'i', 'o', 'u'};
    char input;
    int found = 0;
    while (scanf(" %c", &input) == 1) {
        int found = 0;
        for (int i = 0; i < 10; i++) {
            if (input == letter[i]) {
                found = 1;
                break;
            }

        }
    
    if (found) {
        printf("Vowel\n");
        
    } else {
        printf("Consonant\n");
        
    }
    }

    return 0;
}