#include<iostream>
#include<string>
using namespace std;

class Person {
    protected:
       string name;
    public:
       void getName() {
           getline(cin, name);
       }
       string getPersonName() {
           return name;
       }
};

 class Employee : public Person {
     private:
      float salary;
     public:
      void getSalary() {
          cin >> salary;
      }
      void display() {
          if (salary < 0)
           cout << "Invalid input";
          } else {
            cout << name << " " << salary;
      }
 };
 int main() {
     Employee emp;
     emp.getName();
     emp.getSalary();
     emp.display();
     
     return 0;
 }