#include <stdio.h>
#include <conio.h>
main()
{
	printf("----------program by. Yupharet No.23----------");
	float a,b,c,d;
	printf("\ninput A :");
	scanf("%f",&a);
	printf("\ninput B : ");
	scanf("%f",&b);
	printf("\ninput C : ");
	scanf("%f",&c);
	d = a*b*c;
	printf("\nResult : %.1f",d);
}