Problem:
Score : 100 points

Problem Statement

Given a lowercase English letter c, determine whether it is a vowel. Here, there are five vowels in the English alphabet: a, e, i, o and u.

Constraints

c is a lowercase English letter.

Input

The input is given from Standard Input in the following format:

c

Output

If c is a vowel, print vowel. Otherwise, print consonant.

Sample Input 1

a

Sample Output 1

vowel

Since a is a vowel, print vowel.

Sample Input 2

z

Sample Output 2

consonant

Sample Input 3

s

Sample Output 3

consonant

Solution in Java8 (OpenJDK 1.8.0) (judge verdict: Wrong Answer)

import java.util.Arrays;
import java.util.Scanner;

public class Main {

    private static char[] VOWELS = {'a', 'i', 'u', 'e', 'o'};

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String c = scanner.next();
        scanner.close();

        if (Arrays.asList(VOWELS).contains(c)) {
            System.out.println("vowel");
        } else {
            System.out.println("consonant");
        }
    }
}