#include <stdio.h>
main()
{
	double a,b,c,d,s,x,y;

	printf("x=");
	scanf("%lf",&x);

	printf("y=");
	scanf("%lf",&y);

	s=x*y;
	printf("Height * Width -> Area\n");
	printf("%lf * %lf -> %lf\n", x,y,s);

	a=x+y;
	b=x-y;
	c=x*y;
	d=x/y;
	printf("abcd = %lf %lf %lf %lf\n", a,b,c,d);

}