#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;
}