#include <bits/stdc++.h> using namespace std ; int main() { int sum = 0; int n; cin >> n; int a[n]; for (int i = 0; i < n; i++) { cin >> a[i]; } for (int i = 0; i < n; i++) { sum = sum + a[i]; } int m = 0; for (int i = 0; i < n; i++) { if (a[i] > a[m]) { m = i; } } int c = 0; for (int i = 0; i < n; i++) { if (a[i] < a[c]) { c = i; } } cout<<sum<<" "; printf("%.2f",sum*1.00/n); cout<<" "; cout<<a[m]<<" "<<a[c]; return 0; }