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++14 (GCC 5.4.1) (judge verdict: Accepted)

#include <bits/stdc++.h>

using namespace std;

int main(){
  char c;
  string boin = "aeiou";
  cin >> c;
  
  bool flag = false;
  
  for (const auto& i: boin){
    if (i == c){
      flag = true;
    }
  }
  if (flag) {
    cout << "vowel" << endl;
  }
  else {
    cout << "consonant" << endl;
  }
}