#include<stdio.h>
#include<conio.h>
main()
{
    printf("Program : Caleulating 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 : Wiranpat Sanboon No.24----------");
}