#include<iostream>
#include<string>
using namespace std;
class login {
   protected:
   string username;
   string password;
   public:
   void display(){
       cin>>username;
       cin>>password;
   }
};
class pass {
    public: login
    protected:
    string role;
    public:
    void display1(){
        cin>>role;
        if(username.size()<=0 || password.size()<=0 || role.size()<=0){
            cout<<"Invalid input";
        }
        else{
            cout<<username<< endl;
            cout<<role;
        }
    }
};
int main(){
    pass p;
    p.display1();
    p.display1();
    return 0;
}