#include <stdio.h>

int main()
{
	char num = '0';
	while ((num = getchar()) != EOF)
	{ 
        getchar(); 
		switch (num)
		{
		case 'A': 
		case 'a': 
		case 'E': 
		case 'e': 
		case 'I': 
		case 'i':
		case 'O': 
		case 'o': 
		case 'U': 
		case 'u':
			printf("Vowel\n");
			break; 
		default: 
			printf("Consonant\n"); 
			break; 
		}
	}
	return 0;
}