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 Kotlin (1.0.0) (judge verdict: Accepted)

/**
 * Created by karayuu on 2018/10/06
 */
fun main(args: Array<String>) {
    val checkList = listOf('a', 'e', 'i', 'o', 'u')

    val c = readLine()!!.toCharArray().first()
    
    if (checkList.contains(c)) {
        println("vowel")
    } else {
        println("consonant")
    }
}