#include <stdio.h>
#include <conio.h>
main()
{
	float a,b,c,d,e;
	printf("----------Program:calculalate te area of an equilateral rectangle----------\n");
	printf("\nInput a : ");
	scanf("%f",&a);
	printf("\nInput b : ");
	scanf("%f",&b);
	printf("\nInput c : ");
	scanf("%f",&c);
	printf("\nInput d : ");
	scanf("%f",&d);
	e = a*b*c*d;
	printf("\nResult : %.1f",e);
	printf("\n----------By:Thannam Silayaeng NO.16----------");
}