Program Menentukan Kelipatan 3

#include <iostream>
using namespace std;

int main(){
    int awal, akhir;

    cout << "------------------------------" << endl;
    cout << "PROGRAM MENENTUKAN KELIPATAN 3" << endl;
    cout << "------------------------------" << endl;

    cout << "Masukkan angka awal: ";
    cin >> awal;
    cout << "Masukkan angka akhir: ";
    cin >> akhir;

    int i = awal;
    do {
        if (i % 3 == 0){
            cout << i;
            cout << " ";
        }
    i++;
    } while(i <= akhir);

}
//source code by: A.M.H