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

class Rectangle {
public:
    double width;
    double height;
    double getArea() {
        return width * height;
    }
    double getPerimeter() {
        return width * 2 + height * 2;
    }
};

int main()
{
	Rectangle r1, r2;
	cin >> r1.width >> r1.height;
	cin >> r2.width >> r2.height;
	cout << fixed << setprecision(2) << r1.getArea() << ' ' << r1.getPerimeter() << endl;
	cout << fixed << setprecision(2) << r2.getArea() << ' ' << r2.getPerimeter() << endl;
	r2.width = 5.0;
	r2.height = 2.5;
	cout << fixed << setprecision(2) << r2.getArea() << ' ' << r2.getPerimeter() << endl;
	return 0;
}