#include <stdio.h>
#include <conio.h>
main()
{
	printf("Program : Calculating the area of an equilateral rectangle\n");
	float a,b,c,d,e;
	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 : %.2f\n" ,e);
	printf("\n----------By : Pawarisa Yangklang No.18-----------");
}