Vowel Or Consonant

#include<stdio.h>

int main() {
    char abc[1000];
    gets(abc);
    int i = 0, countVowel = 0, countConsonant = 0;

    while (abc[i] != '\0') {
        if(abc[i] == 'a' || abc[i] == 'e' || abc[i] == 'i' || abc[i] == 'o' || abc[i] == 'u') {
            countVowel++;
        } else {
            countConsonant++;
        }
        i++;
    }
    printf("Vowel: %d\nConsonant: %d\n", countVowel, countConsonant);
}