#include <stdio.h>

int main() 
{
    char a;
    while(scanf(" %c",&a)!=EOF)//记得输入空格
    {
        if(a=='a'||a=='A'||a=='e'||a=='E'||a=='i'||a=='I'||a=='o'||a=='O'||a=='u'||a=='U')
        printf("Vowel\n");
        else
        printf("Consonant\n");

    }




    return 0;
}