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 <algorithm>
#include <iomanip>
#include <math.h>
using namespace std;
int main(){
  cin.tie(NULL);
  ios::sync_with_stdio(false);
  string c;
  cin>>c;
  if(c[0]=='a' || c[0]=='e' ||c[0]=='i' || c[0]=='o' || c[0]=='u' ){
    cout<<"vowel"<<"\n";
  }
  else{
    cout<<"consonant"<<"\n";
  }
  
  return 0;
}