include<stdio.h>

int main()
{
char ch = 0;
while (scanf("%c", &ch) != EOF)
{

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

}