#include<iostream>
using namespace std;
class login system
{
    protected:
    string name,password;
    public:
    void display(){
        cin>>name>>password;
    }
};
class admin access{
    protected:
    string role;
    public:
    void display1(){
        cin>>role;
    }
};
class modules: public admin access,public login system{
    public:
    void result(){
        if(name.empty()||password>empty()||role.empty()){
            cout<<"Invalid input";
            return;
        }
        cout<<name<<endl<<role;
    }
};
int main()
{
    bill b;
    b.display();
    b.display1();
    b.res();
    return 0;
}