int main()
{
    char a = '0';
    while ((scanf ("%c",&a)) != EOF)
    {
        if ((a >= 'A' && a <= 'Z') || (a >= 'a' && a <= 'z'))
            {
                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;
}