// editor1
import java.util.*;
class Vehicle{
    int maxspeed;
    void setVehicleSpeed(int speed){
        super.maxspeed = speed;
    }
}
class Car extends Vehicle{
    int maxspeed;
    void setCarSpeed(int speed){
        this.maxspeed = speed;
    }
    void showspeeds(){
        System.out.println(super.maxspeed);
        System.out.println(this.maxspeed);
    }
}
public class Main{
    public static void main(String[]args){
        Scanner sc = new Scanner(System.in);
        Car c = new Car();
        int vspeed = sc.nextInt();
        c.setVehicleSpeed(vspeed);
        int cspeed = sc.nextInt();
         c.setCarSpeed(cspeed);
         c.showspeeds();
         if(vspeed<0||cspeed<0){
             System.out.println("Invalid input");
             return;
         }
    }
}