int main()
{
    char a;
    while((a = getchar()) != EOF)
    {
        if (a == 'A' || a == 'a' || a == 'E' || a == 'e' || a == 'I' || a =='i' || a =='U' || a == 'u' || a == 'O' || a == 'o')
        {
            printf("Vowel\n");
        }
        else
        {
            printf("Consonant\n");
        }
        getchar();
    }
    return 0;
    
}