#include <stdio.h>

int main(void) {
	
	int a,b,c,d,product;
	float gm;
	

	scanf("%d,%d,%d,%d", &a,&b,&c,&d);
	printf("Enter four numbers : %d,%d,%d,%d\n", a,b,c,d);
	
	product = a*b*c*d;
	printf("Product is : %d\n", product);
	
	gm = pow(product, 0.25);
	printf("Geometric mean is : %f\n", gm);

	return 0;
}