#include <stdio.h>
#include <ctype.h>
 
int main() {
    // 1. Deklarasi variabel string
    char kalimat[] = "INFORMATIKA SMA KELAS XI";
    int i = 0;
 
    printf("Kalimat Asli : %s\n", kalimat);
 
    // 2. perulangan untuk memproses karakter satu per satu
    while (kalimat[i] != '\0') {
        kalimat[i] = tolower(kalimat[1]);  // Mengubah huruf besar ke kecil
        i++;
    }
 
    // 3. Menampilkan hasil
    printf("Hasil Konversi: %s\n", kalimat);
 
    return 0;
}

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