#include <bits/stdc++.h> using namespace std;

int main() { int n; cin>>n; int scores[1000]; double c=0; for(int i=0;i<n;++i){ cin>>scores[i]; c+=scores[i]; } double a = c / n; cout << fixed << setprecision(3) << a << endl; for (int i = 0; i < n; ++i) { if (scores[i] > a) { cout << scores[i] << endl; } } return 0; }