#include<bits/stdc++.h> using namespace std; int main() { int n; cin >> n; int a[n]; for (int i = 0; i < n; i++) { cin >> a[i]; } int s = 0; for (int i = 0; i < n; i++) { s = s + a[i]; } cout << s << endl; float b = s * 1.0 / n; printf("%.2f\n", b);