#include <stdio.h>

int main(){
	int b, n, z, max;
	float as,hs;
	n=0;
	z=0;
	max=0;
	hs=0;
	do{
		scanf("%d",&b);	
		z+=b;
		if(b>max)
			max=b;	
		if(b>0){
			hs+=(1.0/b);
			n++;
		}
	}while(b>0);
	as = z*1.0/n;
	hs = n/hs;
	printf("n = %d, z = %d, max = %d, as = %f, hs = %f\n",n,z,max,as,hs);
	return 0;
}