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: Wrong Answer)

#include <bits/stdc++.h>
#define ll long long
#define rep(i, begin, end) for (__typeof(end) i = (begin) - ((begin) > (end)); i != (end) - ((begin) > (end)); i += 1 - 2 * ((begin) > (end))) // rep(i, 1, 5) --> {1,2,3,4} // rep(i, 5, 1) --> {4,3,2,1} // rep(it, end(v), begin(v)) --> *it

using namespace std;

int main()
{
    char c;
    cin >> c;
    if (c == 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u')
        cout << "vowel";
    else 
        cout << "consant";
    return 0;
}