#include<bits/stdc++.h>
using namespace std;
int main(){
    int n;
	double ans1=0,ans2,a[100000],b;
	cin>>n;
	for(int i=1;i<=n;i++){
		cin>>a[i];
    	}
    for(int i=1;i<=n;i++){
    ans1+=a[i];
    b++;
    }
    cout<<ans1<<" ";
    ans2=ans1*1.0/b;
	printf("%.5lf",ans2);
}