#include<iostream>
using namespace std;
class credentials {
    public:
    string username, password;
};
class permissions {
    public:
    string role;
};
class user: public credentials, public permissions{
    public:
    void displayInfo(){
        if(username.empty() || password.empty() || role.empty() ||username.lenght() > 20 || password.length() > 20 || role.length() > 20){
            cout<<"Invalin input";
        }else{
            cout<< username << endl;
            cout<< role;
        }
    }
};
int main(){
    user u;
    cin >> u.username >> u.password;
    cin >> u.role;
    u.displayInfo();
    return 0;
}