#include <stdio.h>
#include <string.h>
int main() {
    char a=0;
   while( scanf("%c\n", &a)!=EOF)
   {
    //a=getchar();
        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;
}