#include<bits/stdc++.h>
using namespace std;

int main(){
	double n,sum=0;
	cin>>n;
	for(int i=0;i<n;i++){
		double s;
		cin>>s;
		sum+=s;
	}
	cout<<sum<<' '<<fixed<<setprecision(5）<<sum/n<<endl;
	return 0;
}