#include <stdio.h>

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