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++ (GCC 9.2.1) (judge verdict: Accepted)

#include<iostream>
#include<string>
#include<algorithm>
#include<vector>
#include<set>
#include<iomanip>
#define pi 3.14159265358979323846
#define ll long long
#define rep(i, a, n) for(int i = a; i < n; i++)
using namespace std;
int main(){
  char a;
  cin >> a;
  if(a == 'a'){
    cout << "vowel\n";
    return 0;
  }
  if(a == 'i'){
    cout << "vowel\n";
    return 0;
  }
  if(a == 'u'){
    cout << "vowel\n";
    return 0;
  }
  if(a == 'e'){
    cout << "vowel\n";
    return 0;
  }
  if(a == 'o'){
    cout << "vowel\n";
    return 0;
  }
  cout << "consonant\n";
}