num27.2

#include <iostream>
#include <fstream>
#include <algorithm>
using namespace std;

int main()
{
    int now = 0, maximum = 0, mod14 = 0, mod7 = 0, mod2 = 0;
    ifstream input("C:\\Users\\Максим\\Downloads\\27-A_2.txt");
    input >> now;
    while (input >> now) {
        if (now % 14 == 0 && now > mod14) {
            mod14 = now;
        }
        else {
            if (now > maximum) {
                maximum = now;
            }

            if (now % 7 == 0 && now > mod7) {
                mod7 = now;
            }
            else if (now % 2 == 0 && now > mod2) {
                mod2 = now;
            }
        }
    }
    cout << max(mod7 * mod2, mod14 * maximum);
}