#include<bits/stdc++.h>
using namespace std;
int main()
{
double c;
long long b,i,a[10000];
cin>>b;
for(i=1;i<=b;i++)
{
cin>>a[i];
c+=a[i]*1.0;
}
cout<<c<<" ";
if(b!=0)
{
cout<<fixed<<setprecision(5)<<c*1.0/b;
}
else cout<<0;
}