#include<iostream>
#include<iomanip>
using namespace std;
int main(){

double o;
double a;
double n;
double c=0;
	cin >> n;
	for(int i=1;i<=n;i++){
		cin>>o;
		c=c+o;
	}
		a=c/n;
		cout<<c<<" ";
		cout<< fixed <<setprecision(5)<<a;
	

	
	return 0;
}