#include <iostream>

using namespace std;

int main()
{
	char x;

	cout << "Enter an alphabet: ";
	cin >> x;

	if ((x=='a')||(x=='e')||(x=='i')||(x=='o')||(x=='u'))
		cout << "It is a vowel" << endl;
	else
		cout << "It is a consonant" << endl;

	return 0;
}