#include <stdio.h>
int main()
{
    char ch = 0;
    while(~scanf("%c", &ch))
    {
        getchar();//吸收回车字符,即\n
        if(ch == 'A' || ch == 'a' || ch == 'E' || ch == 'e'
         || ch == 'I' || ch == 'i' || ch == 'O' || ch == 'o'
         || ch == 'U' || ch == 'u')
         {
            printf("Vowel\n");
         }
         else 
         {
            printf("Consonant\n");
         }
    }
    return 0;
}