#include <iostream>
using namespace std;

class Box
{
public:
    int l, b;
    void get()
    {
        l = 5;
        b = 4;
    }
    void area();
};

void Box::area()
{
    cout << "Area: " << l * b << endl;
}

int main()
{
    Box x;
    x.get();
    x.area();
    return 0;
}