Rectangle2DArea

#include <iostream>
#include <math.h>
#include <iomanip>


using namespace std;
int main()
{
    double x1, y1, x2, y2;

    cin >> x1 >> y1 >> x2 >> y2;

    double area = abs(x2 - x1) * abs(y1 - y2);

    double perimeter = 2 * (abs(x2 - x1) + abs(y1 - y2));

    cout << fixed << setprecision(4) << area << endl;

    cout << perimeter << endl;


    return 0;
}