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: Wrong Answer)

#include <stdio.h>
#include <string.h>
int main(void)
{
	int i;
	char c;
	char bo[] = { 'a', 'i', 'u', 'e', 'o' };

	c = getchar();

	for (i = 0; i < 5; i++) {
		if (c == bo[i]) {
			printf("vowel");
			break;
		}
		else {
			printf("consonant");
			break;
		}
	}

	return 0;
}