#include <iostream>

using namespace std;

class Pure {
     public:
        Pure() {};
        virtual void Method1(int x) = 0;
        virtual void Method2() { cout << "Base method 2" << endl;};
        virtual void Method2(int x) {
            cout << "Base method2 with " << x << endl;
        }
};

class Derived: public Pure {
    public:
       //virtual void Method1(float x) override {};
       virtual void Method1(int x) override {
            cout << "Derived Method1 " << x << endl;
       }

       // this will make all Method2 from the base visible.
       using Pure::Method2;

       virtual void Method2() override {
            cout << "Derived Method2" << endl;
       }

};

int main() {
    //Pure p;
    Derived d;

    d.Method1(1);
    d.Method2();
    d.Method2(3);

    return 0;
}