#include<bits/stdc++.h>
using namespace std;
int a,in[10000]={},sum;
int main(){
    double b;
	cin>>a;
	for(int i=1;i<=a;i++){
		cin>>in[i];
		sum+=in[i];
	}
	b=sum*1.0/a;
	cout<<sum<<" "<<fixed<<setprecision(5)<<b<<endl;
}