#include<iostream> #include<iomanip> using namespace std; int main() { int n, sum = 0, mxx = 0, ndd = 100000; double avg; cin >> n; int a[101]; for (int i = 0; i <= n; i++) { cin >> a[i]; sum += a[i]; } avg = 1.0 * sum / n; for (int i = 0; i < n; i++) { if (a[i] > mxx) { mxx = a[i]; } if (a[i] < ndd) { ndd = a[i]; } } cout << sum << " " << fixed << setprecision(2) << avg << " " << mxx << " " << ndd; }