#include

#include

using namespace std;

int main (){

double b,c,d;

int a ,e = 1;

cin >> a;

while(e <= a){

	cin >> b;

	c = c + b;

	e++;

}

d = c / a;

cout << c << " " << fixed << setprecision(5) << 1.0 * d << endl;

}