1 #include <iostream>
 2 #include <iomanip>
 3 using namespace std;
 4 int main(int argc, char** argv) {
 5     int n;
 6     cin>>n;
 7     float x=0;
 8     int h;
 9     float a=0;
10     for(int i=0;i<n;i++){
11         cin>>a;
12         x=x+a;
13     }
14     cout<< x<<endl;
15     double pingjun;
16     pingjun=x/n;
17     cout<<fixed<<setprecision(5)<<pingjun;
18     return 0;
19 }