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 PHP (5.6.30) (judge verdict: Accepted)

<?php
$s = trim(fgets(STDIN));
$v = "aeiou";
$c = 0;
$i = 0;
while($i < 5){
if($s == $v[$i]){
++$c;
break;
}else{
++$i;
}
}
echo $c > 0?"vowel":"consonant";