#include <stdio.h>
#include <math.h>

int main() {
	float r;
	printf("Enter radius: ");
	scanf("%f", &r);

	printf("Area of circle: %0.2f\n", M_PI*r*r);
	printf("Volume of sphere: %.02f\n", M_PI*r*r*r*4.0/3.0);
}