import java.util.*;
import java.lang.*;
import java.io.*;

// The main method must be in a class named "Main".
class Main {
    public static void main(String[] args) {
        System.out.println("Hola Mundoooo!");
        double base = 8;
        double altura = 5;
        double area = (base * altura) / 2;
        System.out.println("Área: " + area);

    }
}