Number Generator

#include <iostream>

using namespace std;

int main() {
    int m, n, l, special, control;
    cin >> m >> n >> l >> special >> control;

    for (int i = m; i > 0; i--) {
        for (int j = n; j > 0; j--) {
            for (int k = l; k > 0; k--) {
                int num = i * 100 + j * 10 + k;

                if (num % 3 == 0) {
                    special += 5;
                }
                else if (num % 5 == 0) {
                    special -= 2;
                }
                else if (num % 2 == 0) {
                    special *= 2;
                }

                if (special >= control) {
                    cout << "Yes! Control number was reached! Current special number is " << special << ".\n";
                    return 0;
                }
            }
        }
    }
    cout << "No! " << special << " is the last reached special number.\n";
    return 0;
}