03. Lucky Numbers

#include <iostream>

using namespace std;

int main() {
    int num;
    cin >> num;

    for (int i = 1; i <= 9; i++) {
        for (int k = 1; k <= 9; k++) {
            for (int j = 1; j <= 9; j++) {
                for (int x = 1; x <= 9; x++) {
                    if (i + k == j + x && num % (i + k) == 0) {
                        cout << i << k << j << x << " ";
                    }
                }
            }
        }
    }
    return 0;
}