40分求助！！！

#include<iostream>
using namespace std;
int A, B, C;
int main() {
    cin.tie(0), cout.tie(0) -> sync_with_stdio(false);
    cin >> A >> B >> C;
    for (int a = 123; a <= 999; a++) {
        int b = a * B, c = a * C;
        if((a / 100 + a / 10 % 10 + a % 10 + b / 100 + b / 10 % 10 + b % 10 + c / 100 + c / 10 % 10 + c % 10 == 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9)
                            && ((a / 100) * (a / 10 % 10) * (a % 10) * (b / 100) * (b / 10 % 10) * (b % 10) * (c / 100) * (c / 10 % 10) * (c % 10) ==
                            1 * 2 * 3 * 4 * 5 * 6 * 7 * 8 * 9)) cout << a << ' ' << b << ' ' << c << endl;
    }
    return 0;
}