#include <stdio.h>

int main() 
{
    char n = 0;
    while(scanf("%c",&n)!=EOF)
    {
        getchar();              //吸收scanf输入后的回车字符'\n'
        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;
}