#include <stdio.h>
#include <math.h>

typedef struct {
	double X;
	double Y;
}Point;

Point scan_point(void);
double area_of(Point p1, Point p2);
double circumference_of(Point p1, Point p2);

int main(void) {
		Point p1;
		Point p2;
		
		p1=scan_point();
		p2=scan_point();
		
		double area,circumference;
		
		area=area_of(p1, p2);
		circumference=circumference_of(p1, p2);
		
		printf("area=%.2f circumference=%.2f",area,circumference);
		
	return 0;
}

Point scan_point(void){
	
	Point p;
	
	scanf("%lf",&p.X);
	scanf("%lf",&p.Y);
	
	return p;
}

double area_of(Point p1, Point p2){
	return fabs(p1.X-p2.X)*fabs(p1.Y-p2.Y);
}

double circumference_of(Point p1, Point p2){
	return fabs(p1.X-p2.X)*2+fabs(p1.Y-p2.Y)*2;
}