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 5.4.1) (judge verdict: Accepted)

#include <stdio.h>

int main(void)
{
	char c,a,e,i,o,u;
	
	int x=0;
	
	scanf("%c",&c);
	
	char vowel[]={'a','e','i','o','u'};
	
	for(int i=0;i<5;i++){
		if(vowel[i]==c){
			x++;
		}
	}
	
	if(x!=0){
		printf("vowel\n");
	}else{
		printf("consonant\n");
	}
	
	return 0;
}