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 Ruby (2.3.3) (judge verdict: Accepted)

# http://d.hatena.ne.jp/tomomii+programming/20100614/p2
# chompってつけることでcで標準出力する時に改行しないようにしてくれるので後ろに文字列を連結できる
c = STDIN.gets.chomp

puts ["a","i","u","e","o"].find{|i| i == c} != nil ? "vowel" : "consonant"


# c = STDIN.gets.chomp
# puts ["a", "i", "u", "e", "o"].find{|i| i == c} != nil ? "vowel" : "consonant"