#include<stdio.h>
#include<string.h>
int main()
{
    char a;
    while((a=getchar())!=EOF)
    {
        if(a>='A'&&a<='Z')    //大写
        {
            if(a=='A'||a=='E'||a=='I'||a=='O'||a=='U')
                printf("Vowel\n");
            else printf("Consonant\n");
        }else if(a>='a'&&a<='z')    //小写
        {
            if(a=='a'||a=='e'||a=='i'||a=='o'||a=='u')
                printf("Vowel\n");
            else printf("Consonant\n");
        }
    }
    return 0;
}