#include <stdio.h>

float calculateArea(float x, float y){
	//float a = x * y;
	//return a;
	return x*y;
}

int main() {
	float h, w;
	//
	h = 100.01;
	w = 30.01;
	//float area = h* w;
	float area  = calculateArea(h,w);
	printf("h:%f, w:%f, area:%f\n", h, w, area);

	return 0;
}