#include <stdio.h>
int main()
{
    char n;
    while(scanf("%c",&n)!=EOF)
    {
        getchar();
        if(n=='a'||n=='A'||n=='e'||n=='E'||n=='i'||n=='I'||n=='O'||n=='o'||n=='U'||n=='u')
        printf("Vowel\n");
        else
         printf("Consonant\n");

    }
    return 0;
}