#include<stdio.h>
int main()
{
    char ch = 0;
    while((ch = getchar())!= EOF)
    {
        getchar();
        if((ch == 'A'|| ch == 'A'+32) || (ch == 'O'|| ch == 'O'+32) || (ch == 'E'|| ch == 'E'+32) || (ch == 'I'|| ch == 'I'+32) || (ch == 'U'|| ch == 'U'+32) )
            printf("Vowel\n");
        else
            printf("Consonant\n");
    }
    return 0;
}