#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; int x = 0; double f; int a[n]; for (int i = 0; i < n; i++) { cin >> a[i]; } for (int i = 0; i < n; i++) { x = x + a[i]; } f = x*1.0 / n; int e = 0; for (int i = 0; i < n; i++) { if (a[i] < a[e]) { e = i; } } int j = 0; for (int i = 0; i < n; i++) { if (a[i] > a[j]) { j=i; } } cout << x << " "; printf("%.2f", f); cout << " " << a[j] << " " << a[e]; return 0; }