public class J4_13 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		java.util.Scanner input = new java.util.Scanner(System.in);
		System.out.print("Enter a letter:");
		
		String character = input.nextLine();
		
		character =character.toUpperCase();
		if(character.length() !=1 )
			System.out.print("Wrong");
		else if(character.charAt(0)<='Z' && character.charAt(0) >='A')
		{
			if(character.startsWith("A")||character.startsWith("E")||
					character.startsWith("I")||character.startsWith("O")||character.startsWith("U"))
				System.out.println(character.charAt(0)+" is a vowel");
			else
				System.out.println(character.charAt(0)+" is an consonant");
			
		}
		else
			System.out.println(character.charAt(0)+" is an invalid input");
		
	}

}