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 C# (Mono 4.6.2.0) (judge verdict: Accepted)

using System;
class Program
 {
        static void Main(string[] args)
        {
    　　string a = Console.ReadLine();
    　　if(a.Equals("a") || a.Equals("i") || a.Equals("u") || a.Equals("e") || a.Equals("o")){
    　　	Console.Write("vowel");
    　　}
    　　else{
    　　	Console.Write("consonant");
    　　}
        }
 }