#include<stdio.h>
int main()
{
	char n;
	while (scanf(" %c", &n) != EOF)
	{
		if (n == 'A' || n == 'a' || n == 'E' || n == 'e' || n == 'I' || n == 'i' || n == 'O' || n == 'o' || n == 'U' || n == 'u')
			printf("Vowel\n");
		else
			printf("Consonant\n"); 
	}
	return 0; 
}